18849820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1823}}^1$

素因数の和:1890

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 25276388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 1823, 2068, 2585, 3646, 5170, 7292, 9115, 10340, 18230, 20053, 36460, 40106, 80212, 85681, 100265, 171362, 200530, 342724, 401060, 428405, 856810, 942491, 1713620, 1884982, 3769964, 4712455, 9424910, 18849820]

約数ペア:

[(1, 18849820), (2, 9424910), (4, 4712455), (5, 3769964), (10, 1884982), (11, 1713620), (20, 942491), (22, 856810), (44, 428405), (47, 401060), (55, 342724), (94, 200530), (110, 171362), (188, 100265), (220, 85681), (235, 80212), (470, 40106), (517, 36460), (940, 20053), (1034, 18230), (1823, 10340), (2068, 9115), (2585, 7292), (3646, 5170)]