199528090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{643639}}^1$

素因数の和:643677

約数の個数: 16

約数和(自身を含む): 370736640

約数和(自身を除く): 171208550

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 643639, 1287278, 3218195, 6436390, 19952809, 39905618, 99764045, 199528090]

約数ペア:

[(1, 199528090), (2, 99764045), (5, 39905618), (10, 19952809), (31, 6436390), (62, 3218195), (155, 1287278), (310, 643639)]