28362425

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{137}}^1$

素因数の和:187

約数の個数: 54

約数和(自身を含む): 44623818

約数和(自身を除く): 16261393

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 137, 169, 175, 245, 325, 455, 637, 685, 845, 959, 1183, 1225, 1781, 2275, 3185, 3425, 4225, 4795, 5915, 6713, 8281, 8905, 12467, 15925, 23153, 23975, 29575, 33565, 41405, 44525, 62335, 87269, 115765, 162071, 167825, 207025, 311675, 436345, 578825, 810355, 1134497, 2181725, 4051775, 5672485, 28362425]

約数ペア:

[(1, 28362425), (5, 5672485), (7, 4051775), (13, 2181725), (25, 1134497), (35, 810355), (49, 578825), (65, 436345), (91, 311675), (137, 207025), (169, 167825), (175, 162071), (245, 115765), (325, 87269), (455, 62335), (637, 44525), (685, 41405), (845, 33565), (959, 29575), (1183, 23975), (1225, 23153), (1781, 15925), (2275, 12467), (3185, 8905), (3425, 8281), (4225, 6713), (4795, 5915)]