320626580

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{117017}}^1$

素因数の和:117163

約数の個数: 24

約数和(自身を含む): 678236328

約数和(自身を除く): 357609748

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 117017, 234034, 468068, 585085, 1170170, 2340340, 16031329, 32062658, 64125316, 80156645, 160313290, 320626580]

約数ペア:

[(1, 320626580), (2, 160313290), (4, 80156645), (5, 64125316), (10, 32062658), (20, 16031329), (137, 2340340), (274, 1170170), (548, 585085), (685, 468068), (1370, 234034), (2740, 117017)]