639628164

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{40289}}^1$

素因数の和:40319

約数の個数: 90

約数和(自身を含む): 1945160910

約数和(自身を除く): 1305532746

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 196, 252, 294, 324, 378, 441, 567, 588, 756, 882, 1134, 1323, 1764, 2268, 2646, 3969, 5292, 7938, 15876, 40289, 80578, 120867, 161156, 241734, 282023, 362601, 483468, 564046, 725202, 846069, 1087803, 1128092, 1450404, 1692138, 1974161, 2175606, 2538207, 3263409, 3384276, 3948322, 4351212, 5076414, 5922483, 6526818, 7614621, 7896644, 10152828, 11844966, 13053636, 15229242, 17767449, 22843863, 23689932, 30458484, 35534898, 45687726, 53302347, 71069796, 91375452, 106604694, 159907041, 213209388, 319814082, 639628164]

約数ペア:

[(1, 639628164), (2, 319814082), (3, 213209388), (4, 159907041), (6, 106604694), (7, 91375452), (9, 71069796), (12, 53302347), (14, 45687726), (18, 35534898), (21, 30458484), (27, 23689932), (28, 22843863), (36, 17767449), (42, 15229242), (49, 13053636), (54, 11844966), (63, 10152828), (81, 7896644), (84, 7614621), (98, 6526818), (108, 5922483), (126, 5076414), (147, 4351212), (162, 3948322), (189, 3384276), (196, 3263409), (252, 2538207), (294, 2175606), (324, 1974161), (378, 1692138), (441, 1450404), (567, 1128092), (588, 1087803), (756, 846069), (882, 725202), (1134, 564046), (1323, 483468), (1764, 362601), (2268, 282023), (2646, 241734), (3969, 161156), (5292, 120867), (7938, 80578), (15876, 40289)]