21890969520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{23563}}^1$

素因数の和:23672

約数の個数: 240

約数和(自身を含む): 79944168960

約数和(自身を除く): 58053199440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 79, 80, 84, 98, 105, 112, 120, 140, 147, 158, 168, 196, 210, 237, 240, 245, 280, 294, 316, 336, 392, 395, 420, 474, 490, 553, 560, 588, 632, 735, 784, 790, 840, 948, 980, 1106, 1176, 1185, 1264, 1470, 1580, 1659, 1680, 1896, 1960, 2212, 2352, 2370, 2765, 2940, 3160, 3318, 3792, 3871, 3920, 4424, 4740, 5530, 5880, 6320, 6636, 7742, 8295, 8848, 9480, 11060, 11613, 11760, 13272, 15484, 16590, 18960, 19355, 22120, 23226, 23563, 26544, 30968, 33180, 38710, 44240, 46452, 47126, 58065, 61936, 66360, 70689, 77420, 92904, 94252, 116130, 117815, 132720, 141378, 154840, 164941, 185808, 188504, 232260, 235630, 282756, 309680, 329882, 353445, 377008, 464520, 471260, 494823, 565512, 659764, 706890, 824705, 929040, 942520, 989646, 1131024, 1154587, 1319528, 1413780, 1649410, 1861477, 1885040, 1979292, 2309174, 2474115, 2639056, 2827560, 3298820, 3463761, 3722954, 3958584, 4618348, 4948230, 5584431, 5655120, 5772935, 6597640, 6927522, 7445908, 7917168, 9236696, 9307385, 9896460, 11168862, 11545870, 13030339, 13195280, 13855044, 14891816, 17318805, 18473392, 18614770, 19792920, 22337724, 23091740, 26060678, 27710088, 27922155, 29783632, 34637610, 37229540, 39091017, 39585840, 44675448, 46183480, 52121356, 55420176, 55844310, 65151695, 69275220, 74459080, 78182034, 89350896, 91212373, 92366960, 104242712, 111688620, 130303390, 138550440, 148918160, 156364068, 182424746, 195455085, 208485424, 223377240, 260606780, 273637119, 277100880, 312728136, 364849492, 390910170, 446754480, 456061865, 521213560, 547274238, 625456272, 729698984, 781820340, 912123730, 1042427120, 1094548476, 1368185595, 1459397968, 1563640680, 1824247460, 2189096952, 2736371190, 3127281360, 3648494920, 4378193904, 5472742380, 7296989840, 10945484760, 21890969520]

約数ペア:

[(1, 21890969520), (2, 10945484760), (3, 7296989840), (4, 5472742380), (5, 4378193904), (6, 3648494920), (7, 3127281360), (8, 2736371190), (10, 2189096952), (12, 1824247460), (14, 1563640680), (15, 1459397968), (16, 1368185595), (20, 1094548476), (21, 1042427120), (24, 912123730), (28, 781820340), (30, 729698984), (35, 625456272), (40, 547274238), (42, 521213560), (48, 456061865), (49, 446754480), (56, 390910170), (60, 364849492), (70, 312728136), (79, 277100880), (80, 273637119), (84, 260606780), (98, 223377240), (105, 208485424), (112, 195455085), (120, 182424746), (140, 156364068), (147, 148918160), (158, 138550440), (168, 130303390), (196, 111688620), (210, 104242712), (237, 92366960), (240, 91212373), (245, 89350896), (280, 78182034), (294, 74459080), (316, 69275220), (336, 65151695), (392, 55844310), (395, 55420176), (420, 52121356), (474, 46183480), (490, 44675448), (553, 39585840), (560, 39091017), (588, 37229540), (632, 34637610), (735, 29783632), (784, 27922155), (790, 27710088), (840, 26060678), (948, 23091740), (980, 22337724), (1106, 19792920), (1176, 18614770), (1185, 18473392), (1264, 17318805), (1470, 14891816), (1580, 13855044), (1659, 13195280), (1680, 13030339), (1896, 11545870), (1960, 11168862), (2212, 9896460), (2352, 9307385), (2370, 9236696), (2765, 7917168), (2940, 7445908), (3160, 6927522), (3318, 6597640), (3792, 5772935), (3871, 5655120), (3920, 5584431), (4424, 4948230), (4740, 4618348), (5530, 3958584), (5880, 3722954), (6320, 3463761), (6636, 3298820), (7742, 2827560), (8295, 2639056), (8848, 2474115), (9480, 2309174), (11060, 1979292), (11613, 1885040), (11760, 1861477), (13272, 1649410), (15484, 1413780), (16590, 1319528), (18960, 1154587), (19355, 1131024), (22120, 989646), (23226, 942520), (23563, 929040), (26544, 824705), (30968, 706890), (33180, 659764), (38710, 565512), (44240, 494823), (46452, 471260), (47126, 464520), (58065, 377008), (61936, 353445), (66360, 329882), (70689, 309680), (77420, 282756), (92904, 235630), (94252, 232260), (116130, 188504), (117815, 185808), (132720, 164941), (141378, 154840)]