313639660

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{220873}}^1$

素因数の和:220953

約数の個数: 24

約数和(自身を含む): 667922976

約数和(自身を除く): 354283316

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 220873, 441746, 883492, 1104365, 2208730, 4417460, 15681983, 31363966, 62727932, 78409915, 156819830, 313639660]

約数ペア:

[(1, 313639660), (2, 156819830), (4, 78409915), (5, 62727932), (10, 31363966), (20, 15681983), (71, 4417460), (142, 2208730), (284, 1104365), (355, 883492), (710, 441746), (1420, 220873)]