80889660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 255921120

約数和(自身を除く): 175031460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 61, 90, 106, 122, 139, 159, 180, 183, 212, 244, 265, 278, 305, 318, 366, 417, 477, 530, 549, 556, 610, 636, 695, 732, 795, 834, 915, 954, 1060, 1098, 1220, 1251, 1390, 1590, 1668, 1830, 1908, 2085, 2196, 2385, 2502, 2745, 2780, 3180, 3233, 3660, 4170, 4770, 5004, 5490, 6255, 6466, 7367, 8340, 8479, 9540, 9699, 10980, 12510, 12932, 14734, 16165, 16958, 19398, 22101, 25020, 25437, 29097, 29468, 32330, 33916, 36835, 38796, 42395, 44202, 48495, 50874, 58194, 64660, 66303, 73670, 76311, 84790, 88404, 96990, 101748, 110505, 116388, 127185, 132606, 145485, 147340, 152622, 169580, 193980, 221010, 254370, 265212, 290970, 305244, 331515, 381555, 442020, 449387, 508740, 581940, 663030, 763110, 898774, 1326060, 1348161, 1526220, 1797548, 2246935, 2696322, 4044483, 4493870, 5392644, 6740805, 8088966, 8987740, 13481610, 16177932, 20222415, 26963220, 40444830, 80889660]

約数ペア:

[(1, 80889660), (2, 40444830), (3, 26963220), (4, 20222415), (5, 16177932), (6, 13481610), (9, 8987740), (10, 8088966), (12, 6740805), (15, 5392644), (18, 4493870), (20, 4044483), (30, 2696322), (36, 2246935), (45, 1797548), (53, 1526220), (60, 1348161), (61, 1326060), (90, 898774), (106, 763110), (122, 663030), (139, 581940), (159, 508740), (180, 449387), (183, 442020), (212, 381555), (244, 331515), (265, 305244), (278, 290970), (305, 265212), (318, 254370), (366, 221010), (417, 193980), (477, 169580), (530, 152622), (549, 147340), (556, 145485), (610, 132606), (636, 127185), (695, 116388), (732, 110505), (795, 101748), (834, 96990), (915, 88404), (954, 84790), (1060, 76311), (1098, 73670), (1220, 66303), (1251, 64660), (1390, 58194), (1590, 50874), (1668, 48495), (1830, 44202), (1908, 42395), (2085, 38796), (2196, 36835), (2385, 33916), (2502, 32330), (2745, 29468), (2780, 29097), (3180, 25437), (3233, 25020), (3660, 22101), (4170, 19398), (4770, 16958), (5004, 16165), (5490, 14734), (6255, 12932), (6466, 12510), (7367, 10980), (8340, 9699), (8479, 9540)]