2021625160

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{120049}}^1$

素因数の和:120481

約数の個数: 32

約数和(自身を含む): 4559499000

約数和(自身を除く): 2537873840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 120049, 240098, 480196, 600245, 960392, 1200490, 2400980, 4801960, 50540629, 101081258, 202162516, 252703145, 404325032, 505406290, 1010812580, 2021625160]

約数ペア:

[(1, 2021625160), (2, 1010812580), (4, 505406290), (5, 404325032), (8, 252703145), (10, 202162516), (20, 101081258), (40, 50540629), (421, 4801960), (842, 2400980), (1684, 1200490), (2105, 960392), (3368, 600245), (4210, 480196), (8420, 240098), (16840, 120049)]