20158749970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87646739}}^1$

素因数の和:87646769

約数の個数: 16

約数和(自身を含む): 37863391680

約数和(自身を除く): 17704641710

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 87646739, 175293478, 438233695, 876467390, 2015874997, 4031749994, 10079374985, 20158749970]

約数ペア:

[(1, 20158749970), (2, 10079374985), (5, 4031749994), (10, 2015874997), (23, 876467390), (46, 438233695), (115, 175293478), (230, 87646739)]