20313400

素因数分解:

$2^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{2161}}^1$

素因数の和:2224

約数の個数: 48

約数和(自身を含む): 48255840

約数和(自身を除く): 27942440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 188, 200, 235, 376, 470, 940, 1175, 1880, 2161, 2350, 4322, 4700, 8644, 9400, 10805, 17288, 21610, 43220, 54025, 86440, 101567, 108050, 203134, 216100, 406268, 432200, 507835, 812536, 1015670, 2031340, 2539175, 4062680, 5078350, 10156700, 20313400]

約数ペア:

[(1, 20313400), (2, 10156700), (4, 5078350), (5, 4062680), (8, 2539175), (10, 2031340), (20, 1015670), (25, 812536), (40, 507835), (47, 432200), (50, 406268), (94, 216100), (100, 203134), (188, 108050), (200, 101567), (235, 86440), (376, 54025), (470, 43220), (940, 21610), (1175, 17288), (1880, 10805), (2161, 9400), (2350, 8644), (4322, 4700)]