721000372

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{9486847}}^1$

素因数の和:9486870

約数の個数: 12

約数和(自身を含む): 1328158720

約数和(自身を除く): 607158348

約数列:

[1, 2, 4, 19, 38, 76, 9486847, 18973694, 37947388, 180250093, 360500186, 721000372]

約数ペア:

[(1, 721000372), (2, 360500186), (4, 180250093), (19, 37947388), (38, 18973694), (76, 9486847)]