28689948

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 90627264

約数和(自身を除く): 61937316

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 37, 42, 51, 63, 68, 74, 84, 102, 111, 119, 126, 148, 153, 181, 204, 222, 238, 252, 259, 306, 333, 357, 362, 444, 476, 518, 543, 612, 629, 666, 714, 724, 777, 1036, 1071, 1086, 1258, 1267, 1332, 1428, 1554, 1629, 1887, 2142, 2172, 2331, 2516, 2534, 3077, 3108, 3258, 3774, 3801, 4284, 4403, 4662, 5068, 5661, 6154, 6516, 6697, 7548, 7602, 8806, 9231, 9324, 11322, 11403, 12308, 13209, 13394, 15204, 17612, 18462, 20091, 21539, 22644, 22806, 26418, 26788, 27693, 36924, 39627, 40182, 43078, 45612, 46879, 52836, 55386, 60273, 64617, 79254, 80364, 86156, 93758, 110772, 113849, 120546, 129234, 140637, 158508, 187516, 193851, 227698, 241092, 258468, 281274, 341547, 387702, 421911, 455396, 562548, 683094, 775404, 796943, 843822, 1024641, 1366188, 1593886, 1687644, 2049282, 2390829, 3187772, 4098564, 4781658, 7172487, 9563316, 14344974, 28689948]

約数ペア:

[(1, 28689948), (2, 14344974), (3, 9563316), (4, 7172487), (6, 4781658), (7, 4098564), (9, 3187772), (12, 2390829), (14, 2049282), (17, 1687644), (18, 1593886), (21, 1366188), (28, 1024641), (34, 843822), (36, 796943), (37, 775404), (42, 683094), (51, 562548), (63, 455396), (68, 421911), (74, 387702), (84, 341547), (102, 281274), (111, 258468), (119, 241092), (126, 227698), (148, 193851), (153, 187516), (181, 158508), (204, 140637), (222, 129234), (238, 120546), (252, 113849), (259, 110772), (306, 93758), (333, 86156), (357, 80364), (362, 79254), (444, 64617), (476, 60273), (518, 55386), (543, 52836), (612, 46879), (629, 45612), (666, 43078), (714, 40182), (724, 39627), (777, 36924), (1036, 27693), (1071, 26788), (1086, 26418), (1258, 22806), (1267, 22644), (1332, 21539), (1428, 20091), (1554, 18462), (1629, 17612), (1887, 15204), (2142, 13394), (2172, 13209), (2331, 12308), (2516, 11403), (2534, 11322), (3077, 9324), (3108, 9231), (3258, 8806), (3774, 7602), (3801, 7548), (4284, 6697), (4403, 6516), (4662, 6154), (5068, 5661)]