20199031715

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1\times {\mathrm{420857}}^1$

素因数の和:421222

約数の個数: 16

約数和(自身を含む): 25150474080

約数和(自身を除く): 4951442365

約数列:

[1, 5, 29, 145, 331, 1655, 9599, 47995, 420857, 2104285, 12204853, 61024265, 139303667, 696518335, 4039806343, 20199031715]

約数ペア:

[(1, 20199031715), (5, 4039806343), (29, 696518335), (145, 139303667), (331, 61024265), (1655, 12204853), (9599, 2104285), (47995, 420857)]