85615880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{305771}}^1$

素因数の和:305789

約数の個数: 32

約数和(自身を含む): 220155840

約数和(自身を除く): 134539960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 305771, 611542, 1223084, 1528855, 2140397, 2446168, 3057710, 4280794, 6115420, 8561588, 10701985, 12230840, 17123176, 21403970, 42807940, 85615880]

約数ペア:

[(1, 85615880), (2, 42807940), (4, 21403970), (5, 17123176), (7, 12230840), (8, 10701985), (10, 8561588), (14, 6115420), (20, 4280794), (28, 3057710), (35, 2446168), (40, 2140397), (56, 1528855), (70, 1223084), (140, 611542), (280, 305771)]