12781664

素因数分解:

$2^5\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1327}}^1$

素因数の和:1387

約数の個数: 48

約数和(自身を含む): 29449728

約数和(自身を除く): 16668064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 86, 112, 172, 224, 301, 344, 602, 688, 1204, 1327, 1376, 2408, 2654, 4816, 5308, 9289, 9632, 10616, 18578, 21232, 37156, 42464, 57061, 74312, 114122, 148624, 228244, 297248, 399427, 456488, 798854, 912976, 1597708, 1825952, 3195416, 6390832, 12781664]

約数ペア:

[(1, 12781664), (2, 6390832), (4, 3195416), (7, 1825952), (8, 1597708), (14, 912976), (16, 798854), (28, 456488), (32, 399427), (43, 297248), (56, 228244), (86, 148624), (112, 114122), (172, 74312), (224, 57061), (301, 42464), (344, 37156), (602, 21232), (688, 18578), (1204, 10616), (1327, 9632), (1376, 9289), (2408, 5308), (2654, 4816)]