253968040

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{30091}}^1$

素因数の和:30313

約数の個数: 32

約数和(自身を含む): 574155360

約数和(自身を除く): 320187320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 30091, 60182, 120364, 150455, 240728, 300910, 601820, 1203640, 6349201, 12698402, 25396804, 31746005, 50793608, 63492010, 126984020, 253968040]

約数ペア:

[(1, 253968040), (2, 126984020), (4, 63492010), (5, 50793608), (8, 31746005), (10, 25396804), (20, 12698402), (40, 6349201), (211, 1203640), (422, 601820), (844, 300910), (1055, 240728), (1688, 150455), (2110, 120364), (4220, 60182), (8440, 30091)]