81953240

素因数分解:

$2^3\times 5^1\times {\mathrm{659}}^1\times {\mathrm{3109}}^1$

素因数の和:3779

約数の個数: 32

約数和(自身を含む): 184734000

約数和(自身を除く): 102780760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659, 1318, 2636, 3109, 3295, 5272, 6218, 6590, 12436, 13180, 15545, 24872, 26360, 31090, 62180, 124360, 2048831, 4097662, 8195324, 10244155, 16390648, 20488310, 40976620, 81953240]

約数ペア:

[(1, 81953240), (2, 40976620), (4, 20488310), (5, 16390648), (8, 10244155), (10, 8195324), (20, 4097662), (40, 2048831), (659, 124360), (1318, 62180), (2636, 31090), (3109, 26360), (3295, 24872), (5272, 15545), (6218, 13180), (6590, 12436)]