25231820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{12491}}^1$

素因数の和:12601

約数の個数: 24

約数和(自身を含む): 53515728

約数和(自身を除く): 28283908

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 12491, 24982, 49964, 62455, 124910, 249820, 1261591, 2523182, 5046364, 6307955, 12615910, 25231820]

約数ペア:

[(1, 25231820), (2, 12615910), (4, 6307955), (5, 5046364), (10, 2523182), (20, 1261591), (101, 249820), (202, 124910), (404, 62455), (505, 49964), (1010, 24982), (2020, 12491)]