20537664

素因数分解:

$2^6\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:125

約数の個数: 168

約数和(自身を含む): 66019680

約数和(自身を除く): 45482016

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 37, 42, 48, 49, 56, 59, 64, 74, 84, 96, 98, 111, 112, 118, 147, 148, 168, 177, 192, 196, 222, 224, 236, 259, 294, 296, 336, 354, 392, 413, 444, 448, 472, 518, 588, 592, 672, 708, 777, 784, 826, 888, 944, 1036, 1176, 1184, 1239, 1344, 1416, 1554, 1568, 1652, 1776, 1813, 1888, 2072, 2183, 2352, 2368, 2478, 2832, 2891, 3108, 3136, 3304, 3552, 3626, 3776, 4144, 4366, 4704, 4956, 5439, 5664, 5782, 6216, 6549, 6608, 7104, 7252, 8288, 8673, 8732, 9408, 9912, 10878, 11328, 11564, 12432, 13098, 13216, 14504, 15281, 16576, 17346, 17464, 19824, 21756, 23128, 24864, 26196, 26432, 29008, 30562, 34692, 34928, 39648, 43512, 45843, 46256, 49728, 52392, 58016, 61124, 69384, 69856, 79296, 87024, 91686, 92512, 104784, 106967, 116032, 122248, 138768, 139712, 174048, 183372, 185024, 209568, 213934, 244496, 277536, 320901, 348096, 366744, 419136, 427868, 488992, 555072, 641802, 733488, 855736, 977984, 1283604, 1466976, 1711472, 2567208, 2933952, 3422944, 5134416, 6845888, 10268832, 20537664]

約数ペア:

[(1, 20537664), (2, 10268832), (3, 6845888), (4, 5134416), (6, 3422944), (7, 2933952), (8, 2567208), (12, 1711472), (14, 1466976), (16, 1283604), (21, 977984), (24, 855736), (28, 733488), (32, 641802), (37, 555072), (42, 488992), (48, 427868), (49, 419136), (56, 366744), (59, 348096), (64, 320901), (74, 277536), (84, 244496), (96, 213934), (98, 209568), (111, 185024), (112, 183372), (118, 174048), (147, 139712), (148, 138768), (168, 122248), (177, 116032), (192, 106967), (196, 104784), (222, 92512), (224, 91686), (236, 87024), (259, 79296), (294, 69856), (296, 69384), (336, 61124), (354, 58016), (392, 52392), (413, 49728), (444, 46256), (448, 45843), (472, 43512), (518, 39648), (588, 34928), (592, 34692), (672, 30562), (708, 29008), (777, 26432), (784, 26196), (826, 24864), (888, 23128), (944, 21756), (1036, 19824), (1176, 17464), (1184, 17346), (1239, 16576), (1344, 15281), (1416, 14504), (1554, 13216), (1568, 13098), (1652, 12432), (1776, 11564), (1813, 11328), (1888, 10878), (2072, 9912), (2183, 9408), (2352, 8732), (2368, 8673), (2478, 8288), (2832, 7252), (2891, 7104), (3108, 6608), (3136, 6549), (3304, 6216), (3552, 5782), (3626, 5664), (3776, 5439), (4144, 4956), (4366, 4704)]