20179970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87739}}^1$

素因数の和:87769

約数の個数: 16

約数和(自身を含む): 37903680

約数和(自身を除く): 17723710

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 87739, 175478, 438695, 877390, 2017997, 4035994, 10089985, 20179970]

約数ペア:

[(1, 20179970), (2, 10089985), (5, 4035994), (10, 2017997), (23, 877390), (46, 438695), (115, 175478), (230, 87739)]