20259905

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{1129}}^1$

素因数の和:1268

約数の個数: 16

約数和(自身を含む): 25248720

約数和(自身を除く): 4988815

約数列:

[1, 5, 37, 97, 185, 485, 1129, 3589, 5645, 17945, 41773, 109513, 208865, 547565, 4051981, 20259905]

約数ペア:

[(1, 20259905), (5, 4051981), (37, 547565), (97, 208865), (185, 109513), (485, 41773), (1129, 17945), (3589, 5645)]