79971220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{571223}}^1$

素因数の和:571239

約数の個数: 24

約数和(自身を含む): 191931264

約数和(自身を除く): 111960044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 571223, 1142446, 2284892, 2856115, 3998561, 5712230, 7997122, 11424460, 15994244, 19992805, 39985610, 79971220]

約数ペア:

[(1, 79971220), (2, 39985610), (4, 19992805), (5, 15994244), (7, 11424460), (10, 7997122), (14, 5712230), (20, 3998561), (28, 2856115), (35, 2284892), (70, 1142446), (140, 571223)]