19031800

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2213}}^1$

素因数の和:2272

約数の個数: 48

約数和(自身を含む): 45298440

約数和(自身を除く): 26266640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 2213, 4300, 4426, 8600, 8852, 11065, 17704, 22130, 44260, 55325, 88520, 95159, 110650, 190318, 221300, 380636, 442600, 475795, 761272, 951590, 1903180, 2378975, 3806360, 4757950, 9515900, 19031800]

約数ペア:

[(1, 19031800), (2, 9515900), (4, 4757950), (5, 3806360), (8, 2378975), (10, 1903180), (20, 951590), (25, 761272), (40, 475795), (43, 442600), (50, 380636), (86, 221300), (100, 190318), (172, 110650), (200, 95159), (215, 88520), (344, 55325), (430, 44260), (860, 22130), (1075, 17704), (1720, 11065), (2150, 8852), (2213, 8600), (4300, 4426)]