19765390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{499}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 37908000

約数和(自身を除く): 18142610

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 233, 466, 499, 998, 1165, 2330, 2495, 3961, 4990, 7922, 8483, 16966, 19805, 39610, 42415, 84830, 116267, 232534, 581335, 1162670, 1976539, 3953078, 9882695, 19765390]

約数ペア:

[(1, 19765390), (2, 9882695), (5, 3953078), (10, 1976539), (17, 1162670), (34, 581335), (85, 232534), (170, 116267), (233, 84830), (466, 42415), (499, 39610), (998, 19805), (1165, 16966), (2330, 8483), (2495, 7922), (3961, 4990)]