85644520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164701}}^1$

素因数の和:164725

約数の個数: 32

約数和(自身を含む): 207524520

約数和(自身を除く): 121880000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 164701, 329402, 658804, 823505, 1317608, 1647010, 2141113, 3294020, 4282226, 6588040, 8564452, 10705565, 17128904, 21411130, 42822260, 85644520]

約数ペア:

[(1, 85644520), (2, 42822260), (4, 21411130), (5, 17128904), (8, 10705565), (10, 8564452), (13, 6588040), (20, 4282226), (26, 3294020), (40, 2141113), (52, 1647010), (65, 1317608), (104, 823505), (130, 658804), (260, 329402), (520, 164701)]