18138690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 72

約数和(自身を含む): 48725820

約数和(自身を除く): 30587130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 109, 129, 215, 218, 258, 327, 387, 430, 545, 645, 654, 774, 981, 1090, 1290, 1635, 1849, 1935, 1962, 3270, 3698, 3870, 4687, 4905, 5547, 9245, 9374, 9810, 11094, 14061, 16641, 18490, 23435, 27735, 28122, 33282, 42183, 46870, 55470, 70305, 83205, 84366, 140610, 166410, 201541, 210915, 403082, 421830, 604623, 1007705, 1209246, 1813869, 2015410, 3023115, 3627738, 6046230, 9069345, 18138690]

約数ペア:

[(1, 18138690), (2, 9069345), (3, 6046230), (5, 3627738), (6, 3023115), (9, 2015410), (10, 1813869), (15, 1209246), (18, 1007705), (30, 604623), (43, 421830), (45, 403082), (86, 210915), (90, 201541), (109, 166410), (129, 140610), (215, 84366), (218, 83205), (258, 70305), (327, 55470), (387, 46870), (430, 42183), (545, 33282), (645, 28122), (654, 27735), (774, 23435), (981, 18490), (1090, 16641), (1290, 14061), (1635, 11094), (1849, 9810), (1935, 9374), (1962, 9245), (3270, 5547), (3698, 4905), (3870, 4687)]