156717640

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{4831}}^1$

素因数の和:5653

約数の個数: 32

約数和(自身を含む): 353122560

約数和(自身を除く): 196404920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 3244, 4055, 4831, 6488, 8110, 9662, 16220, 19324, 24155, 32440, 38648, 48310, 96620, 193240, 3917941, 7835882, 15671764, 19589705, 31343528, 39179410, 78358820, 156717640]

約数ペア:

[(1, 156717640), (2, 78358820), (4, 39179410), (5, 31343528), (8, 19589705), (10, 15671764), (20, 7835882), (40, 3917941), (811, 193240), (1622, 96620), (3244, 48310), (4055, 38648), (4831, 32440), (6488, 24155), (8110, 19324), (9662, 16220)]