28235025

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 108

約数和(自身を含む): 63675612

約数和(自身を除く): 35440587

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 39, 45, 49, 63, 65, 75, 91, 105, 117, 147, 175, 195, 197, 225, 245, 273, 315, 325, 441, 455, 525, 585, 591, 637, 735, 819, 975, 985, 1225, 1365, 1379, 1575, 1773, 1911, 2205, 2275, 2561, 2925, 2955, 3185, 3675, 4095, 4137, 4925, 5733, 6825, 6895, 7683, 8865, 9555, 9653, 11025, 12411, 12805, 14775, 15925, 17927, 20475, 20685, 23049, 28665, 28959, 34475, 38415, 44325, 47775, 48265, 53781, 62055, 64025, 86877, 89635, 103425, 115245, 125489, 143325, 144795, 161343, 192075, 241325, 268905, 310275, 376467, 434385, 448175, 576225, 627445, 723975, 806715, 1129401, 1344525, 1882335, 2171925, 3137225, 4033575, 5647005, 9411675, 28235025]

約数ペア:

[(1, 28235025), (3, 9411675), (5, 5647005), (7, 4033575), (9, 3137225), (13, 2171925), (15, 1882335), (21, 1344525), (25, 1129401), (35, 806715), (39, 723975), (45, 627445), (49, 576225), (63, 448175), (65, 434385), (75, 376467), (91, 310275), (105, 268905), (117, 241325), (147, 192075), (175, 161343), (195, 144795), (197, 143325), (225, 125489), (245, 115245), (273, 103425), (315, 89635), (325, 86877), (441, 64025), (455, 62055), (525, 53781), (585, 48265), (591, 47775), (637, 44325), (735, 38415), (819, 34475), (975, 28959), (985, 28665), (1225, 23049), (1365, 20685), (1379, 20475), (1575, 17927), (1773, 15925), (1911, 14775), (2205, 12805), (2275, 12411), (2561, 11025), (2925, 9653), (2955, 9555), (3185, 8865), (3675, 7683), (4095, 6895), (4137, 6825), (4925, 5733)]