1861400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 4452840

約数和(自身を除く): 2591440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 227, 328, 410, 454, 820, 908, 1025, 1135, 1640, 1816, 2050, 2270, 4100, 4540, 5675, 8200, 9080, 9307, 11350, 18614, 22700, 37228, 45400, 46535, 74456, 93070, 186140, 232675, 372280, 465350, 930700, 1861400]

約数ペア:

[(1, 1861400), (2, 930700), (4, 465350), (5, 372280), (8, 232675), (10, 186140), (20, 93070), (25, 74456), (40, 46535), (41, 45400), (50, 37228), (82, 22700), (100, 18614), (164, 11350), (200, 9307), (205, 9080), (227, 8200), (328, 5675), (410, 4540), (454, 4100), (820, 2270), (908, 2050), (1025, 1816), (1135, 1640)]