78183980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{558457}}^1$

素因数の和:558473

約数の個数: 24

約数和(自身を含む): 187641888

約数和(自身を除く): 109457908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 558457, 1116914, 2233828, 2792285, 3909199, 5584570, 7818398, 11169140, 15636796, 19545995, 39091990, 78183980]

約数ペア:

[(1, 78183980), (2, 39091990), (4, 19545995), (5, 15636796), (7, 11169140), (10, 7818398), (14, 5584570), (20, 3909199), (28, 2792285), (35, 2233828), (70, 1116914), (140, 558457)]