28018872

素因数分解:

$2^3\times 3^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 192

約数和(自身を含む): 94348800

約数和(自身を除く): 66329928

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 29, 36, 42, 54, 56, 58, 63, 71, 72, 81, 84, 87, 108, 116, 126, 142, 162, 168, 174, 189, 203, 213, 216, 232, 243, 252, 261, 284, 324, 348, 378, 406, 426, 486, 497, 504, 522, 567, 568, 609, 639, 648, 696, 756, 783, 812, 852, 972, 994, 1044, 1134, 1218, 1278, 1491, 1512, 1566, 1624, 1701, 1704, 1827, 1917, 1944, 1988, 2059, 2088, 2268, 2349, 2436, 2556, 2982, 3132, 3402, 3654, 3834, 3976, 4118, 4473, 4536, 4698, 4872, 5112, 5481, 5751, 5964, 6177, 6264, 6804, 7047, 7308, 7668, 8236, 8946, 9396, 10962, 11502, 11928, 12354, 13419, 13608, 14094, 14413, 14616, 15336, 16443, 16472, 17253, 17892, 18531, 18792, 21924, 23004, 24708, 26838, 28188, 28826, 32886, 34506, 35784, 37062, 40257, 43239, 43848, 46008, 49329, 49416, 53676, 55593, 56376, 57652, 65772, 69012, 74124, 80514, 86478, 98658, 107352, 111186, 115304, 120771, 129717, 131544, 138024, 148248, 161028, 166779, 172956, 197316, 222372, 241542, 259434, 322056, 333558, 345912, 389151, 394632, 444744, 483084, 500337, 518868, 667116, 778302, 966168, 1000674, 1037736, 1167453, 1334232, 1556604, 2001348, 2334906, 3113208, 3502359, 4002696, 4669812, 7004718, 9339624, 14009436, 28018872]

約数ペア:

[(1, 28018872), (2, 14009436), (3, 9339624), (4, 7004718), (6, 4669812), (7, 4002696), (8, 3502359), (9, 3113208), (12, 2334906), (14, 2001348), (18, 1556604), (21, 1334232), (24, 1167453), (27, 1037736), (28, 1000674), (29, 966168), (36, 778302), (42, 667116), (54, 518868), (56, 500337), (58, 483084), (63, 444744), (71, 394632), (72, 389151), (81, 345912), (84, 333558), (87, 322056), (108, 259434), (116, 241542), (126, 222372), (142, 197316), (162, 172956), (168, 166779), (174, 161028), (189, 148248), (203, 138024), (213, 131544), (216, 129717), (232, 120771), (243, 115304), (252, 111186), (261, 107352), (284, 98658), (324, 86478), (348, 80514), (378, 74124), (406, 69012), (426, 65772), (486, 57652), (497, 56376), (504, 55593), (522, 53676), (567, 49416), (568, 49329), (609, 46008), (639, 43848), (648, 43239), (696, 40257), (756, 37062), (783, 35784), (812, 34506), (852, 32886), (972, 28826), (994, 28188), (1044, 26838), (1134, 24708), (1218, 23004), (1278, 21924), (1491, 18792), (1512, 18531), (1566, 17892), (1624, 17253), (1701, 16472), (1704, 16443), (1827, 15336), (1917, 14616), (1944, 14413), (1988, 14094), (2059, 13608), (2088, 13419), (2268, 12354), (2349, 11928), (2436, 11502), (2556, 10962), (2982, 9396), (3132, 8946), (3402, 8236), (3654, 7668), (3834, 7308), (3976, 7047), (4118, 6804), (4473, 6264), (4536, 6177), (4698, 5964), (4872, 5751), (5112, 5481)]