20281255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{887}}^1$

素因数の和:1178

約数の個数: 16

約数和(自身を含む): 25894080

約数和(自身を除く): 5612825

約数列:

[1, 5, 17, 85, 269, 887, 1345, 4435, 4573, 15079, 22865, 75395, 238603, 1193015, 4056251, 20281255]

約数ペア:

[(1, 20281255), (5, 4056251), (17, 1193015), (85, 238603), (269, 75395), (887, 22865), (1345, 15079), (4435, 4573)]