78151220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{558223}}^1$

素因数の和:558239

約数の個数: 24

約数和(自身を含む): 187563264

約数和(自身を除く): 109412044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 558223, 1116446, 2232892, 2791115, 3907561, 5582230, 7815122, 11164460, 15630244, 19537805, 39075610, 78151220]

約数ペア:

[(1, 78151220), (2, 39075610), (4, 19537805), (5, 15630244), (7, 11164460), (10, 7815122), (14, 5582230), (20, 3907561), (28, 2791115), (35, 2232892), (70, 1116446), (140, 558223)]