12789920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1$

素因数の和:95

約数の個数: 144

約数和(自身を含む): 36523872

約数和(自身を除く): 23733952

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 43, 44, 52, 55, 65, 80, 86, 88, 104, 110, 130, 143, 160, 169, 172, 176, 208, 215, 220, 260, 286, 338, 344, 352, 416, 430, 440, 473, 520, 559, 572, 676, 688, 715, 845, 860, 880, 946, 1040, 1118, 1144, 1352, 1376, 1430, 1690, 1720, 1760, 1859, 1892, 2080, 2236, 2288, 2365, 2704, 2795, 2860, 3380, 3440, 3718, 3784, 4472, 4576, 4730, 5408, 5590, 5720, 6149, 6760, 6880, 7267, 7436, 7568, 8944, 9295, 9460, 11180, 11440, 12298, 13520, 14534, 14872, 15136, 17888, 18590, 18920, 22360, 22880, 24596, 27040, 29068, 29744, 30745, 36335, 37180, 37840, 44720, 49192, 58136, 59488, 61490, 72670, 74360, 75680, 79937, 89440, 98384, 116272, 122980, 145340, 148720, 159874, 196768, 232544, 245960, 290680, 297440, 319748, 399685, 491920, 581360, 639496, 799370, 983840, 1162720, 1278992, 1598740, 2557984, 3197480, 6394960, 12789920]

約数ペア:

[(1, 12789920), (2, 6394960), (4, 3197480), (5, 2557984), (8, 1598740), (10, 1278992), (11, 1162720), (13, 983840), (16, 799370), (20, 639496), (22, 581360), (26, 491920), (32, 399685), (40, 319748), (43, 297440), (44, 290680), (52, 245960), (55, 232544), (65, 196768), (80, 159874), (86, 148720), (88, 145340), (104, 122980), (110, 116272), (130, 98384), (143, 89440), (160, 79937), (169, 75680), (172, 74360), (176, 72670), (208, 61490), (215, 59488), (220, 58136), (260, 49192), (286, 44720), (338, 37840), (344, 37180), (352, 36335), (416, 30745), (430, 29744), (440, 29068), (473, 27040), (520, 24596), (559, 22880), (572, 22360), (676, 18920), (688, 18590), (715, 17888), (845, 15136), (860, 14872), (880, 14534), (946, 13520), (1040, 12298), (1118, 11440), (1144, 11180), (1352, 9460), (1376, 9295), (1430, 8944), (1690, 7568), (1720, 7436), (1760, 7267), (1859, 6880), (1892, 6760), (2080, 6149), (2236, 5720), (2288, 5590), (2365, 5408), (2704, 4730), (2795, 4576), (2860, 4472), (3380, 3784), (3440, 3718)]