20688571620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{463}}^1\times {\mathrm{248243}}^1$

素因数の和:248721

約数の個数: 72

約数和(自身を含む): 62891127936

約数和(自身を除く): 42202556316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 463, 926, 1389, 1852, 2315, 2778, 4167, 4630, 5556, 6945, 8334, 9260, 13890, 16668, 20835, 27780, 41670, 83340, 248243, 496486, 744729, 992972, 1241215, 1489458, 2234187, 2482430, 2978916, 3723645, 4468374, 4964860, 7447290, 8936748, 11170935, 14894580, 22341870, 44683740, 114936509, 229873018, 344809527, 459746036, 574682545, 689619054, 1034428581, 1149365090, 1379238108, 1724047635, 2068857162, 2298730180, 3448095270, 4137714324, 5172142905, 6896190540, 10344285810, 20688571620]

約数ペア:

[(1, 20688571620), (2, 10344285810), (3, 6896190540), (4, 5172142905), (5, 4137714324), (6, 3448095270), (9, 2298730180), (10, 2068857162), (12, 1724047635), (15, 1379238108), (18, 1149365090), (20, 1034428581), (30, 689619054), (36, 574682545), (45, 459746036), (60, 344809527), (90, 229873018), (180, 114936509), (463, 44683740), (926, 22341870), (1389, 14894580), (1852, 11170935), (2315, 8936748), (2778, 7447290), (4167, 4964860), (4630, 4468374), (5556, 3723645), (6945, 2978916), (8334, 2482430), (9260, 2234187), (13890, 1489458), (16668, 1241215), (20835, 992972), (27780, 744729), (41670, 496486), (83340, 248243)]