71557220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{511123}}^1$

素因数の和:511139

約数の個数: 24

約数和(自身を含む): 171737664

約数和(自身を除く): 100180444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 511123, 1022246, 2044492, 2555615, 3577861, 5111230, 7155722, 10222460, 14311444, 17889305, 35778610, 71557220]

約数ペア:

[(1, 71557220), (2, 35778610), (4, 17889305), (5, 14311444), (7, 10222460), (10, 7155722), (14, 5111230), (20, 3577861), (28, 2555615), (35, 2044492), (70, 1022246), (140, 511123)]