71338580

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{277}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 153189120

約数和(自身を除く): 81850540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 163, 277, 316, 326, 395, 554, 652, 790, 815, 1108, 1385, 1580, 1630, 2770, 3260, 5540, 12877, 21883, 25754, 43766, 45151, 51508, 64385, 87532, 90302, 109415, 128770, 180604, 218830, 225755, 257540, 437660, 451510, 903020, 3566929, 7133858, 14267716, 17834645, 35669290, 71338580]

約数ペア:

[(1, 71338580), (2, 35669290), (4, 17834645), (5, 14267716), (10, 7133858), (20, 3566929), (79, 903020), (158, 451510), (163, 437660), (277, 257540), (316, 225755), (326, 218830), (395, 180604), (554, 128770), (652, 109415), (790, 90302), (815, 87532), (1108, 64385), (1385, 51508), (1580, 45151), (1630, 43766), (2770, 25754), (3260, 21883), (5540, 12877)]