168309740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{195709}}^1$

素因数の和:195761

約数の個数: 24

約数和(自身を含む): 361672080

約数和(自身を除く): 193362340

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 195709, 391418, 782836, 978545, 1957090, 3914180, 8415487, 16830974, 33661948, 42077435, 84154870, 168309740]

約数ペア:

[(1, 168309740), (2, 84154870), (4, 42077435), (5, 33661948), (10, 16830974), (20, 8415487), (43, 3914180), (86, 1957090), (172, 978545), (215, 782836), (430, 391418), (860, 195709)]