865780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{593}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 1846152

約数和(自身を除く): 980372

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 593, 730, 1186, 1460, 2372, 2965, 5930, 11860, 43289, 86578, 173156, 216445, 432890, 865780]

約数ペア:

[(1, 865780), (2, 432890), (4, 216445), (5, 173156), (10, 86578), (20, 43289), (73, 11860), (146, 5930), (292, 2965), (365, 2372), (593, 1460), (730, 1186)]