66428680

素因数分解:

$2^3\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1831}}^1$

素因数の和:2749

約数の個数: 32

約数和(自身を含む): 149711040

約数和(自身を除く): 83282360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 907, 1814, 1831, 3628, 3662, 4535, 7256, 7324, 9070, 9155, 14648, 18140, 18310, 36280, 36620, 73240, 1660717, 3321434, 6642868, 8303585, 13285736, 16607170, 33214340, 66428680]

約数ペア:

[(1, 66428680), (2, 33214340), (4, 16607170), (5, 13285736), (8, 8303585), (10, 6642868), (20, 3321434), (40, 1660717), (907, 73240), (1814, 36620), (1831, 36280), (3628, 18310), (3662, 18140), (4535, 14648), (7256, 9155), (7324, 9070)]