28275156

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:180

約数の個数: 180

約数和(自身を含む): 93275028

約数和(自身を除く): 64999872

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 49, 52, 54, 63, 78, 81, 84, 91, 98, 108, 117, 126, 137, 147, 156, 162, 182, 189, 196, 234, 252, 273, 274, 294, 324, 351, 364, 378, 411, 441, 468, 546, 548, 567, 588, 637, 702, 756, 819, 822, 882, 959, 1053, 1092, 1134, 1233, 1274, 1323, 1404, 1638, 1644, 1764, 1781, 1911, 1918, 2106, 2268, 2457, 2466, 2548, 2646, 2877, 3276, 3562, 3699, 3822, 3836, 3969, 4212, 4914, 4932, 5292, 5343, 5733, 5754, 6713, 7124, 7371, 7398, 7644, 7938, 8631, 9828, 10686, 11097, 11466, 11508, 12467, 13426, 14742, 14796, 15876, 16029, 17199, 17262, 20139, 21372, 22194, 22932, 24934, 25893, 26852, 29484, 32058, 34398, 34524, 37401, 40278, 44388, 48087, 49868, 51597, 51786, 60417, 64116, 68796, 74802, 77679, 80556, 87269, 96174, 103194, 103572, 112203, 120834, 144261, 149604, 155358, 174538, 181251, 192348, 206388, 224406, 241668, 261807, 288522, 310716, 336609, 349076, 362502, 448812, 523614, 543753, 577044, 673218, 725004, 785421, 1009827, 1047228, 1087506, 1346436, 1570842, 2019654, 2175012, 2356263, 3141684, 4039308, 4712526, 7068789, 9425052, 14137578, 28275156]

約数ペア:

[(1, 28275156), (2, 14137578), (3, 9425052), (4, 7068789), (6, 4712526), (7, 4039308), (9, 3141684), (12, 2356263), (13, 2175012), (14, 2019654), (18, 1570842), (21, 1346436), (26, 1087506), (27, 1047228), (28, 1009827), (36, 785421), (39, 725004), (42, 673218), (49, 577044), (52, 543753), (54, 523614), (63, 448812), (78, 362502), (81, 349076), (84, 336609), (91, 310716), (98, 288522), (108, 261807), (117, 241668), (126, 224406), (137, 206388), (147, 192348), (156, 181251), (162, 174538), (182, 155358), (189, 149604), (196, 144261), (234, 120834), (252, 112203), (273, 103572), (274, 103194), (294, 96174), (324, 87269), (351, 80556), (364, 77679), (378, 74802), (411, 68796), (441, 64116), (468, 60417), (546, 51786), (548, 51597), (567, 49868), (588, 48087), (637, 44388), (702, 40278), (756, 37401), (819, 34524), (822, 34398), (882, 32058), (959, 29484), (1053, 26852), (1092, 25893), (1134, 24934), (1233, 22932), (1274, 22194), (1323, 21372), (1404, 20139), (1638, 17262), (1644, 17199), (1764, 16029), (1781, 15876), (1911, 14796), (1918, 14742), (2106, 13426), (2268, 12467), (2457, 11508), (2466, 11466), (2548, 11097), (2646, 10686), (2877, 9828), (3276, 8631), (3562, 7938), (3699, 7644), (3822, 7398), (3836, 7371), (3969, 7124), (4212, 6713), (4914, 5754), (4932, 5733), (5292, 5343)]