320425990

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{215051}}^1$

素因数の和:215207

約数の個数: 16

約数和(自身を含む): 580640400

約数和(自身を除く): 260214410

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 215051, 430102, 1075255, 2150510, 32042599, 64085198, 160212995, 320425990]

約数ペア:

[(1, 320425990), (2, 160212995), (5, 64085198), (10, 32042599), (149, 2150510), (298, 1075255), (745, 430102), (1490, 215051)]