28145208

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:306

約数の個数: 128

約数和(自身を含む): 88704000

約数和(自身を除く): 60558792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 49, 52, 56, 78, 84, 91, 98, 104, 147, 156, 168, 182, 196, 263, 273, 294, 312, 343, 364, 392, 526, 546, 588, 637, 686, 728, 789, 1029, 1052, 1092, 1176, 1274, 1372, 1578, 1841, 1911, 2058, 2104, 2184, 2548, 2744, 3156, 3419, 3682, 3822, 4116, 4459, 5096, 5523, 6312, 6838, 7364, 7644, 8232, 8918, 10257, 11046, 12887, 13377, 13676, 14728, 15288, 17836, 20514, 22092, 23933, 25774, 26754, 27352, 35672, 38661, 41028, 44184, 47866, 51548, 53508, 71799, 77322, 82056, 90209, 95732, 103096, 107016, 143598, 154644, 167531, 180418, 191464, 270627, 287196, 309288, 335062, 360836, 502593, 541254, 574392, 670124, 721672, 1005186, 1082508, 1172717, 1340248, 2010372, 2165016, 2345434, 3518151, 4020744, 4690868, 7036302, 9381736, 14072604, 28145208]

約数ペア:

[(1, 28145208), (2, 14072604), (3, 9381736), (4, 7036302), (6, 4690868), (7, 4020744), (8, 3518151), (12, 2345434), (13, 2165016), (14, 2010372), (21, 1340248), (24, 1172717), (26, 1082508), (28, 1005186), (39, 721672), (42, 670124), (49, 574392), (52, 541254), (56, 502593), (78, 360836), (84, 335062), (91, 309288), (98, 287196), (104, 270627), (147, 191464), (156, 180418), (168, 167531), (182, 154644), (196, 143598), (263, 107016), (273, 103096), (294, 95732), (312, 90209), (343, 82056), (364, 77322), (392, 71799), (526, 53508), (546, 51548), (588, 47866), (637, 44184), (686, 41028), (728, 38661), (789, 35672), (1029, 27352), (1052, 26754), (1092, 25774), (1176, 23933), (1274, 22092), (1372, 20514), (1578, 17836), (1841, 15288), (1911, 14728), (2058, 13676), (2104, 13377), (2184, 12887), (2548, 11046), (2744, 10257), (3156, 8918), (3419, 8232), (3682, 7644), (3822, 7364), (4116, 6838), (4459, 6312), (5096, 5523)]