220148680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{557}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 510436080

約数和(自身を除く): 290287400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 241, 328, 410, 482, 557, 820, 964, 1114, 1205, 1640, 1928, 2228, 2410, 2785, 4456, 4820, 5570, 9640, 9881, 11140, 19762, 22280, 22837, 39524, 45674, 49405, 79048, 91348, 98810, 114185, 134237, 182696, 197620, 228370, 268474, 395240, 456740, 536948, 671185, 913480, 1073896, 1342370, 2684740, 5369480, 5503717, 11007434, 22014868, 27518585, 44029736, 55037170, 110074340, 220148680]

約数ペア:

[(1, 220148680), (2, 110074340), (4, 55037170), (5, 44029736), (8, 27518585), (10, 22014868), (20, 11007434), (40, 5503717), (41, 5369480), (82, 2684740), (164, 1342370), (205, 1073896), (241, 913480), (328, 671185), (410, 536948), (482, 456740), (557, 395240), (820, 268474), (964, 228370), (1114, 197620), (1205, 182696), (1640, 134237), (1928, 114185), (2228, 98810), (2410, 91348), (2785, 79048), (4456, 49405), (4820, 45674), (5570, 39524), (9640, 22837), (9881, 22280), (11140, 19762)]