28499425

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 36499896

約数和(自身を除く): 8000471

約数列:

[1, 5, 25, 53, 137, 157, 265, 685, 785, 1325, 3425, 3925, 7261, 8321, 21509, 36305, 41605, 107545, 181525, 208025, 537725, 1139977, 5699885, 28499425]

約数ペア:

[(1, 28499425), (5, 5699885), (25, 1139977), (53, 537725), (137, 208025), (157, 181525), (265, 107545), (685, 41605), (785, 36305), (1325, 21509), (3425, 8321), (3925, 7261)]