28419475

素因数分解:

$5^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{647}}^1$

素因数の和:915

約数の個数: 24

約数和(自身を含む): 40497408

約数和(自身を除く): 12077933

約数列:

[1, 5, 7, 25, 35, 175, 251, 647, 1255, 1757, 3235, 4529, 6275, 8785, 16175, 22645, 43925, 113225, 162397, 811985, 1136779, 4059925, 5683895, 28419475]

約数ペア:

[(1, 28419475), (5, 5683895), (7, 4059925), (25, 1136779), (35, 811985), (175, 162397), (251, 113225), (647, 43925), (1255, 22645), (1757, 16175), (3235, 8785), (4529, 6275)]