71501960

素因数分解:

$2^3\times 5^1\times {\mathrm{881}}^1\times {\mathrm{2029}}^1$

素因数の和:2921

約数の個数: 32

約数和(自身を含む): 161141400

約数和(自身を除く): 89639440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 881, 1762, 2029, 3524, 4058, 4405, 7048, 8116, 8810, 10145, 16232, 17620, 20290, 35240, 40580, 81160, 1787549, 3575098, 7150196, 8937745, 14300392, 17875490, 35750980, 71501960]

約数ペア:

[(1, 71501960), (2, 35750980), (4, 17875490), (5, 14300392), (8, 8937745), (10, 7150196), (20, 3575098), (40, 1787549), (881, 81160), (1762, 40580), (2029, 35240), (3524, 20290), (4058, 17620), (4405, 16232), (7048, 10145), (8116, 8810)]