4090804580

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{318103}}^1$

素因数の和:318755

約数の個数: 24

約数和(自身を含む): 8604076992

約数和(自身を除く): 4513272412

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 6430, 12860, 318103, 636206, 1272412, 1590515, 3181030, 6362060, 204540229, 409080458, 818160916, 1022701145, 2045402290, 4090804580]

約数ペア:

[(1, 4090804580), (2, 2045402290), (4, 1022701145), (5, 818160916), (10, 409080458), (20, 204540229), (643, 6362060), (1286, 3181030), (2572, 1590515), (3215, 1272412), (6430, 636206), (12860, 318103)]