20487936

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 64623104

約数和(自身を除く): 44135168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 37, 42, 48, 56, 64, 74, 84, 96, 103, 111, 112, 128, 148, 168, 192, 206, 222, 224, 256, 259, 296, 309, 336, 384, 412, 444, 448, 518, 592, 618, 672, 721, 768, 777, 824, 888, 896, 1036, 1184, 1236, 1344, 1442, 1554, 1648, 1776, 1792, 2072, 2163, 2368, 2472, 2688, 2884, 3108, 3296, 3552, 3811, 4144, 4326, 4736, 4944, 5376, 5768, 6216, 6592, 7104, 7622, 8288, 8652, 9472, 9888, 11433, 11536, 12432, 13184, 14208, 15244, 16576, 17304, 19776, 22866, 23072, 24864, 26368, 26677, 28416, 30488, 33152, 34608, 39552, 45732, 46144, 49728, 53354, 60976, 66304, 69216, 79104, 80031, 91464, 92288, 99456, 106708, 121952, 138432, 160062, 182928, 184576, 198912, 213416, 243904, 276864, 320124, 365856, 426832, 487808, 553728, 640248, 731712, 853664, 975616, 1280496, 1463424, 1707328, 2560992, 2926848, 3414656, 5121984, 6829312, 10243968, 20487936]

約数ペア:

[(1, 20487936), (2, 10243968), (3, 6829312), (4, 5121984), (6, 3414656), (7, 2926848), (8, 2560992), (12, 1707328), (14, 1463424), (16, 1280496), (21, 975616), (24, 853664), (28, 731712), (32, 640248), (37, 553728), (42, 487808), (48, 426832), (56, 365856), (64, 320124), (74, 276864), (84, 243904), (96, 213416), (103, 198912), (111, 184576), (112, 182928), (128, 160062), (148, 138432), (168, 121952), (192, 106708), (206, 99456), (222, 92288), (224, 91464), (256, 80031), (259, 79104), (296, 69216), (309, 66304), (336, 60976), (384, 53354), (412, 49728), (444, 46144), (448, 45732), (518, 39552), (592, 34608), (618, 33152), (672, 30488), (721, 28416), (768, 26677), (777, 26368), (824, 24864), (888, 23072), (896, 22866), (1036, 19776), (1184, 17304), (1236, 16576), (1344, 15244), (1442, 14208), (1554, 13184), (1648, 12432), (1776, 11536), (1792, 11433), (2072, 9888), (2163, 9472), (2368, 8652), (2472, 8288), (2688, 7622), (2884, 7104), (3108, 6592), (3296, 6216), (3552, 5768), (3811, 5376), (4144, 4944), (4326, 4736)]