409859480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{80681}}^1$

素因数の和:80819

約数の個数: 32

約数和(自身を含む): 929456640

約数和(自身を除く): 519597160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 80681, 161362, 322724, 403405, 645448, 806810, 1613620, 3227240, 10246487, 20492974, 40985948, 51232435, 81971896, 102464870, 204929740, 409859480]

約数ペア:

[(1, 409859480), (2, 204929740), (4, 102464870), (5, 81971896), (8, 51232435), (10, 40985948), (20, 20492974), (40, 10246487), (127, 3227240), (254, 1613620), (508, 806810), (635, 645448), (1016, 403405), (1270, 322724), (2540, 161362), (5080, 80681)]