129121360

素因数分解:

$2^4\times 5^1\times {\mathrm{1614017}}^1$

素因数の和:1614030

約数の個数: 20

約数和(自身を含む): 300207348

約数和(自身を除く): 171085988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1614017, 3228034, 6456068, 8070085, 12912136, 16140170, 25824272, 32280340, 64560680, 129121360]

約数ペア:

[(1, 129121360), (2, 64560680), (4, 32280340), (5, 25824272), (8, 16140170), (10, 12912136), (16, 8070085), (20, 6456068), (40, 3228034), (80, 1614017)]