81774740

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{21407}}^1$

素因数の和:21607

約数の個数: 24

約数和(自身を含む): 172634112

約数和(自身を除く): 90859372

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 21407, 42814, 85628, 107035, 214070, 428140, 4088737, 8177474, 16354948, 20443685, 40887370, 81774740]

約数ペア:

[(1, 81774740), (2, 40887370), (4, 20443685), (5, 16354948), (10, 8177474), (20, 4088737), (191, 428140), (382, 214070), (764, 107035), (955, 85628), (1910, 42814), (3820, 21407)]