31664020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51071}}^1$

素因数の和:51111

約数の個数: 24

約数和(自身を含む): 68640768

約数和(自身を除く): 36976748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 51071, 102142, 204284, 255355, 510710, 1021420, 1583201, 3166402, 6332804, 7916005, 15832010, 31664020]

約数ペア:

[(1, 31664020), (2, 15832010), (4, 7916005), (5, 6332804), (10, 3166402), (20, 1583201), (31, 1021420), (62, 510710), (124, 255355), (155, 204284), (310, 102142), (620, 51071)]