20406635

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2909}}^1$

素因数の和:2998

約数の個数: 16

約数和(自身を含む): 25980480

約数和(自身を除く): 5573845

約数列:

[1, 5, 23, 61, 115, 305, 1403, 2909, 7015, 14545, 66907, 177449, 334535, 887245, 4081327, 20406635]

約数ペア:

[(1, 20406635), (5, 4081327), (23, 887245), (61, 334535), (115, 177449), (305, 66907), (1403, 14545), (2909, 7015)]