210055240

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{8167}}^1$

素因数の和:8821

約数の個数: 32

約数和(自身を含む): 473417280

約数和(自身を除く): 263362040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 8167, 12860, 16334, 25720, 32668, 40835, 65336, 81670, 163340, 326680, 5251381, 10502762, 21005524, 26256905, 42011048, 52513810, 105027620, 210055240]

約数ペア:

[(1, 210055240), (2, 105027620), (4, 52513810), (5, 42011048), (8, 26256905), (10, 21005524), (20, 10502762), (40, 5251381), (643, 326680), (1286, 163340), (2572, 81670), (3215, 65336), (5144, 40835), (6430, 32668), (8167, 25720), (12860, 16334)]