80008180

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:246

約数の個数: 96

約数和(自身を含む): 199584000

約数和(自身を除く): 119575820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 107, 109, 140, 196, 214, 218, 245, 343, 428, 436, 490, 535, 545, 686, 749, 763, 980, 1070, 1090, 1372, 1498, 1526, 1715, 2140, 2180, 2996, 3052, 3430, 3745, 3815, 5243, 5341, 6860, 7490, 7630, 10486, 10682, 11663, 14980, 15260, 20972, 21364, 23326, 26215, 26705, 36701, 37387, 46652, 52430, 53410, 58315, 73402, 74774, 81641, 104860, 106820, 116630, 146804, 149548, 163282, 183505, 186935, 233260, 326564, 367010, 373870, 408205, 571487, 734020, 747740, 816410, 1142974, 1632820, 2285948, 2857435, 4000409, 5714870, 8000818, 11429740, 16001636, 20002045, 40004090, 80008180]

約数ペア:

[(1, 80008180), (2, 40004090), (4, 20002045), (5, 16001636), (7, 11429740), (10, 8000818), (14, 5714870), (20, 4000409), (28, 2857435), (35, 2285948), (49, 1632820), (70, 1142974), (98, 816410), (107, 747740), (109, 734020), (140, 571487), (196, 408205), (214, 373870), (218, 367010), (245, 326564), (343, 233260), (428, 186935), (436, 183505), (490, 163282), (535, 149548), (545, 146804), (686, 116630), (749, 106820), (763, 104860), (980, 81641), (1070, 74774), (1090, 73402), (1372, 58315), (1498, 53410), (1526, 52430), (1715, 46652), (2140, 37387), (2180, 36701), (2996, 26705), (3052, 26215), (3430, 23326), (3745, 21364), (3815, 20972), (5243, 15260), (5341, 14980), (6860, 11663), (7490, 10682), (7630, 10486)]