20923480

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{757}}^1$

素因数の和:1459

約数の個数: 32

約数和(自身を含む): 47208240

約数和(自身を除く): 26284760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 757, 1382, 1514, 2764, 3028, 3455, 3785, 5528, 6056, 6910, 7570, 13820, 15140, 27640, 30280, 523087, 1046174, 2092348, 2615435, 4184696, 5230870, 10461740, 20923480]

約数ペア:

[(1, 20923480), (2, 10461740), (4, 5230870), (5, 4184696), (8, 2615435), (10, 2092348), (20, 1046174), (40, 523087), (691, 30280), (757, 27640), (1382, 15140), (1514, 13820), (2764, 7570), (3028, 6910), (3455, 6056), (3785, 5528)]