78995140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{564251}}^1$

素因数の和:564267

約数の個数: 24

約数和(自身を含む): 189588672

約数和(自身を除く): 110593532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 564251, 1128502, 2257004, 2821255, 3949757, 5642510, 7899514, 11285020, 15799028, 19748785, 39497570, 78995140]

約数ペア:

[(1, 78995140), (2, 39497570), (4, 19748785), (5, 15799028), (7, 11285020), (10, 7899514), (14, 5642510), (20, 3949757), (28, 2821255), (35, 2257004), (70, 1128502), (140, 564251)]