20453328

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:321

約数の個数: 120

約数和(自身を含む): 66388608

約数和(自身を除く): 45935280

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 103, 112, 126, 144, 168, 197, 206, 252, 309, 336, 394, 412, 504, 591, 618, 721, 788, 824, 927, 1008, 1182, 1236, 1379, 1442, 1576, 1648, 1773, 1854, 2163, 2364, 2472, 2758, 2884, 3152, 3546, 3708, 4137, 4326, 4728, 4944, 5516, 5768, 6489, 7092, 7416, 8274, 8652, 9456, 11032, 11536, 12411, 12978, 14184, 14832, 16548, 17304, 20291, 22064, 24822, 25956, 28368, 33096, 34608, 40582, 49644, 51912, 60873, 66192, 81164, 99288, 103824, 121746, 142037, 162328, 182619, 198576, 243492, 284074, 324656, 365238, 426111, 486984, 568148, 730476, 852222, 973968, 1136296, 1278333, 1460952, 1704444, 2272592, 2556666, 2921904, 3408888, 5113332, 6817776, 10226664, 20453328]

約数ペア:

[(1, 20453328), (2, 10226664), (3, 6817776), (4, 5113332), (6, 3408888), (7, 2921904), (8, 2556666), (9, 2272592), (12, 1704444), (14, 1460952), (16, 1278333), (18, 1136296), (21, 973968), (24, 852222), (28, 730476), (36, 568148), (42, 486984), (48, 426111), (56, 365238), (63, 324656), (72, 284074), (84, 243492), (103, 198576), (112, 182619), (126, 162328), (144, 142037), (168, 121746), (197, 103824), (206, 99288), (252, 81164), (309, 66192), (336, 60873), (394, 51912), (412, 49644), (504, 40582), (591, 34608), (618, 33096), (721, 28368), (788, 25956), (824, 24822), (927, 22064), (1008, 20291), (1182, 17304), (1236, 16548), (1379, 14832), (1442, 14184), (1576, 12978), (1648, 12411), (1773, 11536), (1854, 11032), (2163, 9456), (2364, 8652), (2472, 8274), (2758, 7416), (2884, 7092), (3152, 6489), (3546, 5768), (3708, 5516), (4137, 4944), (4326, 4728)]