78009740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{90709}}^1$

素因数の和:90761

約数の個数: 24

約数和(自身を含む): 167632080

約数和(自身を除く): 89622340

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 90709, 181418, 362836, 453545, 907090, 1814180, 3900487, 7800974, 15601948, 19502435, 39004870, 78009740]

約数ペア:

[(1, 78009740), (2, 39004870), (4, 19502435), (5, 15601948), (10, 7800974), (20, 3900487), (43, 1814180), (86, 907090), (172, 453545), (215, 362836), (430, 181418), (860, 90709)]