18202840

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4253}}^1$

素因数の和:4371

約数の個数: 32

約数和(自身を含む): 41348880

約数和(自身を除く): 23146040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4253, 4280, 8506, 17012, 21265, 34024, 42530, 85060, 170120, 455071, 910142, 1820284, 2275355, 3640568, 4550710, 9101420, 18202840]

約数ペア:

[(1, 18202840), (2, 9101420), (4, 4550710), (5, 3640568), (8, 2275355), (10, 1820284), (20, 910142), (40, 455071), (107, 170120), (214, 85060), (428, 42530), (535, 34024), (856, 21265), (1070, 17012), (2140, 8506), (4253, 4280)]