157577240

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{9923}}^1$

素因数の和:10331

約数の個数: 32

約数和(自身を含む): 355477680

約数和(自身を除く): 197900440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 9923, 15880, 19846, 39692, 49615, 79384, 99230, 198460, 396920, 3939431, 7878862, 15757724, 19697155, 31515448, 39394310, 78788620, 157577240]

約数ペア:

[(1, 157577240), (2, 78788620), (4, 39394310), (5, 31515448), (8, 19697155), (10, 15757724), (20, 7878862), (40, 3939431), (397, 396920), (794, 198460), (1588, 99230), (1985, 79384), (3176, 49615), (3970, 39692), (7940, 19846), (9923, 15880)]