209312820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{27043}}^1$

素因数の和:27101

約数の個数: 72

約数和(自身を含む): 649705056

約数和(自身を除く): 440392236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 27043, 54086, 81129, 108172, 135215, 162258, 243387, 270430, 324516, 405645, 486774, 540860, 811290, 973548, 1162849, 1216935, 1622580, 2325698, 2433870, 3488547, 4651396, 4867740, 5814245, 6977094, 10465641, 11628490, 13954188, 17442735, 20931282, 23256980, 34885470, 41862564, 52328205, 69770940, 104656410, 209312820]

約数ペア:

[(1, 209312820), (2, 104656410), (3, 69770940), (4, 52328205), (5, 41862564), (6, 34885470), (9, 23256980), (10, 20931282), (12, 17442735), (15, 13954188), (18, 11628490), (20, 10465641), (30, 6977094), (36, 5814245), (43, 4867740), (45, 4651396), (60, 3488547), (86, 2433870), (90, 2325698), (129, 1622580), (172, 1216935), (180, 1162849), (215, 973548), (258, 811290), (387, 540860), (430, 486774), (516, 405645), (645, 324516), (774, 270430), (860, 243387), (1290, 162258), (1548, 135215), (1935, 108172), (2580, 81129), (3870, 54086), (7740, 27043)]