80957540

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{16127}}^1$

素因数の和:16387

約数の個数: 24

約数和(自身を含む): 170698752

約数和(自身を除く): 89741212

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 16127, 32254, 64508, 80635, 161270, 322540, 4047877, 8095754, 16191508, 20239385, 40478770, 80957540]

約数ペア:

[(1, 80957540), (2, 40478770), (4, 20239385), (5, 16191508), (10, 8095754), (20, 4047877), (251, 322540), (502, 161270), (1004, 80635), (1255, 64508), (2510, 32254), (5020, 16127)]