202012640

素因数分解:

$2^5\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2999}}^1$

素因数の和:3435

約数の個数: 48

約数和(自身を含む): 478548000

約数和(自身を除く): 276535360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 421, 842, 1684, 2105, 2999, 3368, 4210, 5998, 6736, 8420, 11996, 13472, 14995, 16840, 23992, 29990, 33680, 47984, 59980, 67360, 95968, 119960, 239920, 479840, 1262579, 2525158, 5050316, 6312895, 10100632, 12625790, 20201264, 25251580, 40402528, 50503160, 101006320, 202012640]

約数ペア:

[(1, 202012640), (2, 101006320), (4, 50503160), (5, 40402528), (8, 25251580), (10, 20201264), (16, 12625790), (20, 10100632), (32, 6312895), (40, 5050316), (80, 2525158), (160, 1262579), (421, 479840), (842, 239920), (1684, 119960), (2105, 95968), (2999, 67360), (3368, 59980), (4210, 47984), (5998, 33680), (6736, 29990), (8420, 23992), (11996, 16840), (13472, 14995)]