28496840

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1031}}^1$

素因数の和:1733

約数の個数: 32

約数和(自身を含む): 64272960

約数和(自身を除く): 35776120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1031, 1382, 2062, 2764, 3455, 4124, 5155, 5528, 6910, 8248, 10310, 13820, 20620, 27640, 41240, 712421, 1424842, 2849684, 3562105, 5699368, 7124210, 14248420, 28496840]

約数ペア:

[(1, 28496840), (2, 14248420), (4, 7124210), (5, 5699368), (8, 3562105), (10, 2849684), (20, 1424842), (40, 712421), (691, 41240), (1031, 27640), (1382, 20620), (2062, 13820), (2764, 10310), (3455, 8248), (4124, 6910), (5155, 5528)]