809080

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 1846800

約数和(自身を除く): 1037720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 179, 226, 358, 452, 565, 716, 895, 904, 1130, 1432, 1790, 2260, 3580, 4520, 7160, 20227, 40454, 80908, 101135, 161816, 202270, 404540, 809080]

約数ペア:

[(1, 809080), (2, 404540), (4, 202270), (5, 161816), (8, 101135), (10, 80908), (20, 40454), (40, 20227), (113, 7160), (179, 4520), (226, 3580), (358, 2260), (452, 1790), (565, 1432), (716, 1130), (895, 904)]