31316920

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{3449}}^1$

素因数の和:3687

約数の個数: 32

約数和(自身を含む): 70794000

約数和(自身を除く): 39477080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 3449, 4540, 6898, 9080, 13796, 17245, 27592, 34490, 68980, 137960, 782923, 1565846, 3131692, 3914615, 6263384, 7829230, 15658460, 31316920]

約数ペア:

[(1, 31316920), (2, 15658460), (4, 7829230), (5, 6263384), (8, 3914615), (10, 3131692), (20, 1565846), (40, 782923), (227, 137960), (454, 68980), (908, 34490), (1135, 27592), (1816, 17245), (2270, 13796), (3449, 9080), (4540, 6898)]