1025684720

素因数分解:

$2^4\times 5^1\times {\mathrm{12821059}}^1$

素因数の和:12821072

約数の個数: 20

約数和(自身を含む): 2384717160

約数和(自身を除く): 1359032440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12821059, 25642118, 51284236, 64105295, 102568472, 128210590, 205136944, 256421180, 512842360, 1025684720]

約数ペア:

[(1, 1025684720), (2, 512842360), (4, 256421180), (5, 205136944), (8, 128210590), (10, 102568472), (16, 64105295), (20, 51284236), (40, 25642118), (80, 12821059)]