21516043520

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:321

約数の個数: 288

約数和(自身を含む): 55382261760

約数和(自身を除く): 33866218240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 64, 80, 83, 94, 124, 128, 139, 155, 160, 166, 188, 235, 248, 256, 278, 310, 320, 332, 376, 415, 470, 496, 556, 620, 640, 664, 695, 752, 830, 940, 992, 1112, 1240, 1280, 1328, 1390, 1457, 1504, 1660, 1880, 1984, 2224, 2480, 2573, 2656, 2780, 2914, 3008, 3320, 3760, 3901, 3968, 4309, 4448, 4960, 5146, 5312, 5560, 5828, 6016, 6533, 6640, 7285, 7520, 7802, 7936, 8618, 8896, 9920, 10292, 10624, 11120, 11537, 11656, 12032, 12865, 13066, 13280, 14570, 15040, 15604, 17236, 17792, 19505, 19840, 20584, 21248, 21545, 22240, 23074, 23312, 25730, 26132, 26560, 29140, 30080, 31208, 32665, 34472, 35584, 39010, 39680, 41168, 43090, 44480, 46148, 46624, 51460, 52264, 53120, 57685, 58280, 60160, 62416, 65330, 68944, 78020, 82336, 86180, 88960, 92296, 93248, 102920, 104528, 106240, 115370, 116560, 120931, 124832, 130660, 137888, 156040, 164672, 172360, 177920, 184592, 186496, 202523, 205840, 209056, 230740, 233120, 241862, 249664, 261320, 275776, 312080, 329344, 344720, 357647, 369184, 372992, 405046, 411680, 418112, 461480, 466240, 483724, 499328, 522640, 542239, 551552, 604655, 624160, 658688, 689440, 715294, 738368, 810092, 823360, 836224, 922960, 932480, 967448, 998656, 1012615, 1045280, 1084478, 1103104, 1209310, 1248320, 1378880, 1430588, 1476736, 1620184, 1646720, 1672448, 1788235, 1845920, 1864960, 1934896, 2025230, 2090560, 2168956, 2418620, 2496640, 2711195, 2757760, 2861176, 2953472, 3240368, 3293440, 3576470, 3691840, 3869792, 4050460, 4181120, 4337912, 4837240, 4993280, 5422390, 5515520, 5722352, 6480736, 7152940, 7383680, 7739584, 8100920, 8362240, 8675824, 9674480, 10844780, 11444704, 12961472, 14305880, 14767360, 15479168, 16201840, 16809409, 17351648, 19348960, 21689560, 22889408, 25922944, 28611760, 30958336, 32403680, 33618818, 34703296, 38697920, 43379120, 45778816, 51845888, 57223520, 64807360, 67237636, 69406592, 77395840, 84047045, 86758240, 91557632, 114447040, 129614720, 134475272, 138813184, 154791680, 168094090, 173516480, 228894080, 259229440, 268950544, 336188180, 347032960, 457788160, 537901088, 672376360, 694065920, 1075802176, 1344752720, 2151604352, 2689505440, 4303208704, 5379010880, 10758021760, 21516043520]

約数ペア:

[(1, 21516043520), (2, 10758021760), (4, 5379010880), (5, 4303208704), (8, 2689505440), (10, 2151604352), (16, 1344752720), (20, 1075802176), (31, 694065920), (32, 672376360), (40, 537901088), (47, 457788160), (62, 347032960), (64, 336188180), (80, 268950544), (83, 259229440), (94, 228894080), (124, 173516480), (128, 168094090), (139, 154791680), (155, 138813184), (160, 134475272), (166, 129614720), (188, 114447040), (235, 91557632), (248, 86758240), (256, 84047045), (278, 77395840), (310, 69406592), (320, 67237636), (332, 64807360), (376, 57223520), (415, 51845888), (470, 45778816), (496, 43379120), (556, 38697920), (620, 34703296), (640, 33618818), (664, 32403680), (695, 30958336), (752, 28611760), (830, 25922944), (940, 22889408), (992, 21689560), (1112, 19348960), (1240, 17351648), (1280, 16809409), (1328, 16201840), (1390, 15479168), (1457, 14767360), (1504, 14305880), (1660, 12961472), (1880, 11444704), (1984, 10844780), (2224, 9674480), (2480, 8675824), (2573, 8362240), (2656, 8100920), (2780, 7739584), (2914, 7383680), (3008, 7152940), (3320, 6480736), (3760, 5722352), (3901, 5515520), (3968, 5422390), (4309, 4993280), (4448, 4837240), (4960, 4337912), (5146, 4181120), (5312, 4050460), (5560, 3869792), (5828, 3691840), (6016, 3576470), (6533, 3293440), (6640, 3240368), (7285, 2953472), (7520, 2861176), (7802, 2757760), (7936, 2711195), (8618, 2496640), (8896, 2418620), (9920, 2168956), (10292, 2090560), (10624, 2025230), (11120, 1934896), (11537, 1864960), (11656, 1845920), (12032, 1788235), (12865, 1672448), (13066, 1646720), (13280, 1620184), (14570, 1476736), (15040, 1430588), (15604, 1378880), (17236, 1248320), (17792, 1209310), (19505, 1103104), (19840, 1084478), (20584, 1045280), (21248, 1012615), (21545, 998656), (22240, 967448), (23074, 932480), (23312, 922960), (25730, 836224), (26132, 823360), (26560, 810092), (29140, 738368), (30080, 715294), (31208, 689440), (32665, 658688), (34472, 624160), (35584, 604655), (39010, 551552), (39680, 542239), (41168, 522640), (43090, 499328), (44480, 483724), (46148, 466240), (46624, 461480), (51460, 418112), (52264, 411680), (53120, 405046), (57685, 372992), (58280, 369184), (60160, 357647), (62416, 344720), (65330, 329344), (68944, 312080), (78020, 275776), (82336, 261320), (86180, 249664), (88960, 241862), (92296, 233120), (93248, 230740), (102920, 209056), (104528, 205840), (106240, 202523), (115370, 186496), (116560, 184592), (120931, 177920), (124832, 172360), (130660, 164672), (137888, 156040)]