31339240

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1861}}^1$

素因数の和:2293

約数の個数: 32

約数和(自身を含む): 70718760

約数和(自身を除く): 39379520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 1861, 2105, 3368, 3722, 4210, 7444, 8420, 9305, 14888, 16840, 18610, 37220, 74440, 783481, 1566962, 3133924, 3917405, 6267848, 7834810, 15669620, 31339240]

約数ペア:

[(1, 31339240), (2, 15669620), (4, 7834810), (5, 6267848), (8, 3917405), (10, 3133924), (20, 1566962), (40, 783481), (421, 74440), (842, 37220), (1684, 18610), (1861, 16840), (2105, 14888), (3368, 9305), (3722, 8420), (4210, 7444)]