203992015

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{9661}}^1$

素因数の和:9810

約数の個数: 16

約数和(自身を含む): 253221696

約数和(自身を除く): 49229681

約数列:

[1, 5, 41, 103, 205, 515, 4223, 9661, 21115, 48305, 396101, 995083, 1980505, 4975415, 40798403, 203992015]

約数ペア:

[(1, 203992015), (5, 40798403), (41, 4975415), (103, 1980505), (205, 995083), (515, 396101), (4223, 48305), (9661, 21115)]