404920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 933120

約数和(自身を除く): 528200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 191, 212, 265, 382, 424, 530, 764, 955, 1060, 1528, 1910, 2120, 3820, 7640, 10123, 20246, 40492, 50615, 80984, 101230, 202460, 404920]

約数ペア:

[(1, 404920), (2, 202460), (4, 101230), (5, 80984), (8, 50615), (10, 40492), (20, 20246), (40, 10123), (53, 7640), (106, 3820), (191, 2120), (212, 1910), (265, 1528), (382, 1060), (424, 955), (530, 764)]