20512656

素因数分解:

$2^4\times 3^3\times {\mathrm{103}}^1\times {\mathrm{461}}^1$

素因数の和:581

約数の個数: 80

約数和(自身を含む): 59579520

約数和(自身を除く): 39066864

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 103, 108, 144, 206, 216, 309, 412, 432, 461, 618, 824, 922, 927, 1236, 1383, 1648, 1844, 1854, 2472, 2766, 2781, 3688, 3708, 4149, 4944, 5532, 5562, 7376, 7416, 8298, 11064, 11124, 12447, 14832, 16596, 22128, 22248, 24894, 33192, 44496, 47483, 49788, 66384, 94966, 99576, 142449, 189932, 199152, 284898, 379864, 427347, 569796, 759728, 854694, 1139592, 1282041, 1709388, 2279184, 2564082, 3418776, 5128164, 6837552, 10256328, 20512656]

約数ペア:

[(1, 20512656), (2, 10256328), (3, 6837552), (4, 5128164), (6, 3418776), (8, 2564082), (9, 2279184), (12, 1709388), (16, 1282041), (18, 1139592), (24, 854694), (27, 759728), (36, 569796), (48, 427347), (54, 379864), (72, 284898), (103, 199152), (108, 189932), (144, 142449), (206, 99576), (216, 94966), (309, 66384), (412, 49788), (432, 47483), (461, 44496), (618, 33192), (824, 24894), (922, 22248), (927, 22128), (1236, 16596), (1383, 14832), (1648, 12447), (1844, 11124), (1854, 11064), (2472, 8298), (2766, 7416), (2781, 7376), (3688, 5562), (3708, 5532), (4149, 4944)]