4051775

素因数分解:

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

素因数の和:180

約数の個数: 36

約数和(自身を含む): 6262992

約数和(自身を除く): 2211217

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 137, 169, 175, 325, 455, 685, 845, 959, 1183, 1781, 2275, 3425, 4225, 4795, 5915, 8905, 12467, 23153, 23975, 29575, 44525, 62335, 115765, 162071, 311675, 578825, 810355, 4051775]

約数ペア:

[(1, 4051775), (5, 810355), (7, 578825), (13, 311675), (25, 162071), (35, 115765), (65, 62335), (91, 44525), (137, 29575), (169, 23975), (175, 23153), (325, 12467), (455, 8905), (685, 5915), (845, 4795), (959, 4225), (1183, 3425), (1781, 2275)]