78836897960

素因数分解:

$2^3\times 5^1\times {\mathrm{1970922449}}^1$

素因数の和:1970922460

約数の個数: 16

約数和(自身を含む): 177383020500

約数和(自身を除く): 98546122540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1970922449, 3941844898, 7883689796, 9854612245, 15767379592, 19709224490, 39418448980, 78836897960]

約数ペア:

[(1, 78836897960), (2, 39418448980), (4, 19709224490), (5, 15767379592), (8, 9854612245), (10, 7883689796), (20, 3941844898), (40, 1970922449)]