31335640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{111913}}^1$

素因数の和:111931

約数の個数: 32

約数和(自身を含む): 80578080

約数和(自身を除く): 49242440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 111913, 223826, 447652, 559565, 783391, 895304, 1119130, 1566782, 2238260, 3133564, 3916955, 4476520, 6267128, 7833910, 15667820, 31335640]

約数ペア:

[(1, 31335640), (2, 15667820), (4, 7833910), (5, 6267128), (7, 4476520), (8, 3916955), (10, 3133564), (14, 2238260), (20, 1566782), (28, 1119130), (35, 895304), (40, 783391), (56, 559565), (70, 447652), (140, 223826), (280, 111913)]