66686680

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{15581}}^1$

素因数の和:15699

約数の個数: 32

約数和(自身を含む): 151457040

約数和(自身を除く): 84770360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 15581, 31162, 62324, 77905, 124648, 155810, 311620, 623240, 1667167, 3334334, 6668668, 8335835, 13337336, 16671670, 33343340, 66686680]

約数ペア:

[(1, 66686680), (2, 33343340), (4, 16671670), (5, 13337336), (8, 8335835), (10, 6668668), (20, 3334334), (40, 1667167), (107, 623240), (214, 311620), (428, 155810), (535, 124648), (856, 77905), (1070, 62324), (2140, 31162), (4280, 15581)]