30790960

素因数分解:

$2^4\times 5^1\times {\mathrm{557}}^1\times {\mathrm{691}}^1$

素因数の和:1261

約数の個数: 40

約数和(自身を含む): 71821296

約数和(自身を除く): 41030336

約数列:

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

約数ペア:

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