25778925

素因数分解:

$3^3\times 5^2\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 47844160

約数和(自身を除く): 22065235

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 181, 211, 225, 543, 633, 675, 905, 1055, 1629, 1899, 2715, 3165, 4525, 4887, 5275, 5697, 8145, 9495, 13575, 15825, 24435, 28485, 38191, 40725, 47475, 114573, 122175, 142425, 190955, 343719, 572865, 954775, 1031157, 1718595, 2864325, 5155785, 8592975, 25778925]

約数ペア:

[(1, 25778925), (3, 8592975), (5, 5155785), (9, 2864325), (15, 1718595), (25, 1031157), (27, 954775), (45, 572865), (75, 343719), (135, 190955), (181, 142425), (211, 122175), (225, 114573), (543, 47475), (633, 40725), (675, 38191), (905, 28485), (1055, 24435), (1629, 15825), (1899, 13575), (2715, 9495), (3165, 8145), (4525, 5697), (4887, 5275)]