18431800

素因数分解:

$2^3\times 5^2\times {\mathrm{157}}^1\times {\mathrm{587}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 43200360

約数和(自身を除く): 24768560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 157, 200, 314, 587, 628, 785, 1174, 1256, 1570, 2348, 2935, 3140, 3925, 4696, 5870, 6280, 7850, 11740, 14675, 15700, 23480, 29350, 31400, 58700, 92159, 117400, 184318, 368636, 460795, 737272, 921590, 1843180, 2303975, 3686360, 4607950, 9215900, 18431800]

約数ペア:

[(1, 18431800), (2, 9215900), (4, 4607950), (5, 3686360), (8, 2303975), (10, 1843180), (20, 921590), (25, 737272), (40, 460795), (50, 368636), (100, 184318), (157, 117400), (200, 92159), (314, 58700), (587, 31400), (628, 29350), (785, 23480), (1174, 15700), (1256, 14675), (1570, 11740), (2348, 7850), (2935, 6280), (3140, 5870), (3925, 4696)]