81691036

素因数分解:

$2^2\times 7^2\times {\mathrm{163}}^1\times {\mathrm{2557}}^1$

素因数の和:2738

約数の個数: 36

約数和(自身を含む): 167385288

約数和(自身を除く): 85694252

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 163, 196, 326, 652, 1141, 2282, 2557, 4564, 5114, 7987, 10228, 15974, 17899, 31948, 35798, 71596, 125293, 250586, 416791, 501172, 833582, 1667164, 2917537, 5835074, 11670148, 20422759, 40845518, 81691036]

約数ペア:

[(1, 81691036), (2, 40845518), (4, 20422759), (7, 11670148), (14, 5835074), (28, 2917537), (49, 1667164), (98, 833582), (163, 501172), (196, 416791), (326, 250586), (652, 125293), (1141, 71596), (2282, 35798), (2557, 31948), (4564, 17899), (5114, 15974), (7987, 10228)]