217258920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1381}}^1$

素因数の和:1440

約数の個数: 192

約数和(自身を含む): 776131200

約数和(自身を除く): 558872280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 30, 36, 38, 40, 45, 46, 57, 60, 69, 72, 76, 90, 92, 95, 114, 115, 120, 138, 152, 171, 180, 184, 190, 207, 228, 230, 276, 285, 342, 345, 360, 380, 414, 437, 456, 460, 552, 570, 684, 690, 760, 828, 855, 874, 920, 1035, 1140, 1311, 1368, 1380, 1381, 1656, 1710, 1748, 2070, 2185, 2280, 2622, 2760, 2762, 3420, 3496, 3933, 4140, 4143, 4370, 5244, 5524, 6555, 6840, 6905, 7866, 8280, 8286, 8740, 10488, 11048, 12429, 13110, 13810, 15732, 16572, 17480, 19665, 20715, 24858, 26220, 26239, 27620, 31464, 31763, 33144, 39330, 41430, 49716, 52440, 52478, 55240, 62145, 63526, 78660, 78717, 82860, 95289, 99432, 104956, 124290, 127052, 131195, 157320, 157434, 158815, 165720, 190578, 209912, 236151, 248580, 254104, 262390, 285867, 314868, 317630, 381156, 393585, 472302, 476445, 497160, 524780, 571734, 603497, 629736, 635260, 762312, 787170, 944604, 952890, 1049560, 1143468, 1180755, 1206994, 1270520, 1429335, 1574340, 1810491, 1889208, 1905780, 2286936, 2361510, 2413988, 2858670, 3017485, 3148680, 3620982, 3811560, 4723020, 4827976, 5431473, 5717340, 6034970, 7241964, 9052455, 9446040, 10862946, 11434680, 12069940, 14483928, 18104910, 21725892, 24139880, 27157365, 36209820, 43451784, 54314730, 72419640, 108629460, 217258920]

約数ペア:

[(1, 217258920), (2, 108629460), (3, 72419640), (4, 54314730), (5, 43451784), (6, 36209820), (8, 27157365), (9, 24139880), (10, 21725892), (12, 18104910), (15, 14483928), (18, 12069940), (19, 11434680), (20, 10862946), (23, 9446040), (24, 9052455), (30, 7241964), (36, 6034970), (38, 5717340), (40, 5431473), (45, 4827976), (46, 4723020), (57, 3811560), (60, 3620982), (69, 3148680), (72, 3017485), (76, 2858670), (90, 2413988), (92, 2361510), (95, 2286936), (114, 1905780), (115, 1889208), (120, 1810491), (138, 1574340), (152, 1429335), (171, 1270520), (180, 1206994), (184, 1180755), (190, 1143468), (207, 1049560), (228, 952890), (230, 944604), (276, 787170), (285, 762312), (342, 635260), (345, 629736), (360, 603497), (380, 571734), (414, 524780), (437, 497160), (456, 476445), (460, 472302), (552, 393585), (570, 381156), (684, 317630), (690, 314868), (760, 285867), (828, 262390), (855, 254104), (874, 248580), (920, 236151), (1035, 209912), (1140, 190578), (1311, 165720), (1368, 158815), (1380, 157434), (1381, 157320), (1656, 131195), (1710, 127052), (1748, 124290), (2070, 104956), (2185, 99432), (2280, 95289), (2622, 82860), (2760, 78717), (2762, 78660), (3420, 63526), (3496, 62145), (3933, 55240), (4140, 52478), (4143, 52440), (4370, 49716), (5244, 41430), (5524, 39330), (6555, 33144), (6840, 31763), (6905, 31464), (7866, 27620), (8280, 26239), (8286, 26220), (8740, 24858), (10488, 20715), (11048, 19665), (12429, 17480), (13110, 16572), (13810, 15732)]