64701790

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{81901}}^1$

素因数の和:81987

約数の個数: 16

約数和(自身を含む): 117938880

約数和(自身を除く): 53237090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 81901, 163802, 409505, 819010, 6470179, 12940358, 32350895, 64701790]

約数ペア:

[(1, 64701790), (2, 32350895), (5, 12940358), (10, 6470179), (79, 819010), (158, 409505), (395, 163802), (790, 81901)]