128520491005

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1\times {\mathrm{2145047}}^1$

素因数の和:2145596

約数の個数: 16

約数和(自身を含む): 161238968064

約数和(自身を除く): 32718477059

約数列:

[1, 5, 23, 115, 521, 2605, 11983, 59915, 2145047, 10725235, 49336081, 246680405, 1117569487, 5587847435, 25704098201, 128520491005]

約数ペア:

[(1, 128520491005), (5, 25704098201), (23, 5587847435), (115, 1117569487), (521, 246680405), (2605, 49336081), (11983, 10725235), (59915, 2145047)]