20480090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{70621}}^1$

素因数の和:70657

約数の個数: 16

約数和(自身を含む): 38135880

約数和(自身を除く): 17655790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 70621, 141242, 353105, 706210, 2048009, 4096018, 10240045, 20480090]

約数ペア:

[(1, 20480090), (2, 10240045), (5, 4096018), (10, 2048009), (29, 706210), (58, 353105), (145, 141242), (290, 70621)]