80813560

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{14747}}^1$

素因数の和:14895

約数の個数: 32

約数和(自身を含む): 183170160

約数和(自身を除く): 102356600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 14747, 29494, 58988, 73735, 117976, 147470, 294940, 589880, 2020339, 4040678, 8081356, 10101695, 16162712, 20203390, 40406780, 80813560]

約数ペア:

[(1, 80813560), (2, 40406780), (4, 20203390), (5, 16162712), (8, 10101695), (10, 8081356), (20, 4040678), (40, 2020339), (137, 589880), (274, 294940), (548, 147470), (685, 117976), (1096, 73735), (1370, 58988), (2740, 29494), (5480, 14747)]