872730895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{21821}}^1$

素因数の和:22266

約数の個数: 16

約数和(自身を含む): 1105066080

約数和(自身を除く): 232335185

約数列:

[1, 5, 19, 95, 421, 2105, 7999, 21821, 39995, 109105, 414599, 2072995, 9186641, 45933205, 174546179, 872730895]

約数ペア:

[(1, 872730895), (5, 174546179), (19, 45933205), (95, 9186641), (421, 2072995), (2105, 414599), (7999, 109105), (21821, 39995)]