19812410

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{809}}^1$

素因数の和:926

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 17512390

約数列:

[1, 2, 5, 10, 31, 62, 79, 155, 158, 310, 395, 790, 809, 1618, 2449, 4045, 4898, 8090, 12245, 24490, 25079, 50158, 63911, 125395, 127822, 250790, 319555, 639110, 1981241, 3962482, 9906205, 19812410]

約数ペア:

[(1, 19812410), (2, 9906205), (5, 3962482), (10, 1981241), (31, 639110), (62, 319555), (79, 250790), (155, 127822), (158, 125395), (310, 63911), (395, 50158), (790, 25079), (809, 24490), (1618, 12245), (2449, 8090), (4045, 4898)]