31173220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2551}}^1$

素因数の和:2620

約数の個数: 48

約数和(自身を含む): 72027648

約数和(自身を除く): 40854428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 2551, 3055, 5102, 6110, 10204, 12220, 12755, 25510, 33163, 51020, 66326, 119897, 132652, 165815, 239794, 331630, 479588, 599485, 663260, 1198970, 1558661, 2397940, 3117322, 6234644, 7793305, 15586610, 31173220]

約数ペア:

[(1, 31173220), (2, 15586610), (4, 7793305), (5, 6234644), (10, 3117322), (13, 2397940), (20, 1558661), (26, 1198970), (47, 663260), (52, 599485), (65, 479588), (94, 331630), (130, 239794), (188, 165815), (235, 132652), (260, 119897), (470, 66326), (611, 51020), (940, 33163), (1222, 25510), (2444, 12755), (2551, 12220), (3055, 10204), (5102, 6110)]