12270940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{193}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 30017232

約数和(自身を除く): 17746292

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 193, 220, 289, 340, 374, 386, 578, 748, 772, 935, 965, 1156, 1445, 1870, 1930, 2123, 2890, 3179, 3281, 3740, 3860, 4246, 5780, 6358, 6562, 8492, 10615, 12716, 13124, 15895, 16405, 21230, 31790, 32810, 36091, 42460, 55777, 63580, 65620, 72182, 111554, 144364, 180455, 223108, 278885, 360910, 557770, 613547, 721820, 1115540, 1227094, 2454188, 3067735, 6135470, 12270940]

約数ペア:

[(1, 12270940), (2, 6135470), (4, 3067735), (5, 2454188), (10, 1227094), (11, 1115540), (17, 721820), (20, 613547), (22, 557770), (34, 360910), (44, 278885), (55, 223108), (68, 180455), (85, 144364), (110, 111554), (170, 72182), (187, 65620), (193, 63580), (220, 55777), (289, 42460), (340, 36091), (374, 32810), (386, 31790), (578, 21230), (748, 16405), (772, 15895), (935, 13124), (965, 12716), (1156, 10615), (1445, 8492), (1870, 6562), (1930, 6358), (2123, 5780), (2890, 4246), (3179, 3860), (3281, 3740)]