809840

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:257

約数の個数: 40

約数和(自身を含む): 1928448

約数和(自身を除く): 1118608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 191, 212, 265, 382, 424, 530, 764, 848, 955, 1060, 1528, 1910, 2120, 3056, 3820, 4240, 7640, 10123, 15280, 20246, 40492, 50615, 80984, 101230, 161968, 202460, 404920, 809840]

約数ペア:

[(1, 809840), (2, 404920), (4, 202460), (5, 161968), (8, 101230), (10, 80984), (16, 50615), (20, 40492), (40, 20246), (53, 15280), (80, 10123), (106, 7640), (191, 4240), (212, 3820), (265, 3056), (382, 2120), (424, 1910), (530, 1528), (764, 1060), (848, 955)]