81319840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4271}}^1$

素因数の和:4310

約数の個数: 96

約数和(自身を含む): 232533504

約数和(自身を除く): 151213664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 340, 476, 544, 560, 595, 680, 952, 1120, 1190, 1360, 1904, 2380, 2720, 3808, 4271, 4760, 8542, 9520, 17084, 19040, 21355, 29897, 34168, 42710, 59794, 68336, 72607, 85420, 119588, 136672, 145214, 149485, 170840, 239176, 290428, 298970, 341680, 363035, 478352, 508249, 580856, 597940, 683360, 726070, 956704, 1016498, 1161712, 1195880, 1452140, 2032996, 2323424, 2391760, 2541245, 2904280, 4065992, 4783520, 5082490, 5808560, 8131984, 10164980, 11617120, 16263968, 20329960, 40659920, 81319840]

約数ペア:

[(1, 81319840), (2, 40659920), (4, 20329960), (5, 16263968), (7, 11617120), (8, 10164980), (10, 8131984), (14, 5808560), (16, 5082490), (17, 4783520), (20, 4065992), (28, 2904280), (32, 2541245), (34, 2391760), (35, 2323424), (40, 2032996), (56, 1452140), (68, 1195880), (70, 1161712), (80, 1016498), (85, 956704), (112, 726070), (119, 683360), (136, 597940), (140, 580856), (160, 508249), (170, 478352), (224, 363035), (238, 341680), (272, 298970), (280, 290428), (340, 239176), (476, 170840), (544, 149485), (560, 145214), (595, 136672), (680, 119588), (952, 85420), (1120, 72607), (1190, 68336), (1360, 59794), (1904, 42710), (2380, 34168), (2720, 29897), (3808, 21355), (4271, 19040), (4760, 17084), (8542, 9520)]