61581920

素因数分解:

$2^5\times 5^1\times {\mathrm{557}}^1\times {\mathrm{691}}^1$

素因数の和:1263

約数の個数: 48

約数和(自身を含む): 145959408

約数和(自身を除く): 84377488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 557, 691, 1114, 1382, 2228, 2764, 2785, 3455, 4456, 5528, 5570, 6910, 8912, 11056, 11140, 13820, 17824, 22112, 22280, 27640, 44560, 55280, 89120, 110560, 384887, 769774, 1539548, 1924435, 3079096, 3848870, 6158192, 7697740, 12316384, 15395480, 30790960, 61581920]

約数ペア:

[(1, 61581920), (2, 30790960), (4, 15395480), (5, 12316384), (8, 7697740), (10, 6158192), (16, 3848870), (20, 3079096), (32, 1924435), (40, 1539548), (80, 769774), (160, 384887), (557, 110560), (691, 89120), (1114, 55280), (1382, 44560), (2228, 27640), (2764, 22280), (2785, 22112), (3455, 17824), (4456, 13820), (5528, 11140), (5570, 11056), (6910, 8912)]