79721240

素因数分解:

$2^3\times 5^1\times {\mathrm{1993031}}^1$

素因数の和:1993042

約数の個数: 16

約数和(自身を含む): 179372880

約数和(自身を除く): 99651640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1993031, 3986062, 7972124, 9965155, 15944248, 19930310, 39860620, 79721240]

約数ペア:

[(1, 79721240), (2, 39860620), (4, 19930310), (5, 15944248), (8, 9965155), (10, 7972124), (20, 3986062), (40, 1993031)]