25190020

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{7727}}^1$

素因数の和:7899

約数の個数: 24

約数和(自身を含む): 53230464

約数和(自身を除く): 28040444

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 7727, 15454, 30908, 38635, 77270, 154540, 1259501, 2519002, 5038004, 6297505, 12595010, 25190020]

約数ペア:

[(1, 25190020), (2, 12595010), (4, 6297505), (5, 5038004), (10, 2519002), (20, 1259501), (163, 154540), (326, 77270), (652, 38635), (815, 30908), (1630, 15454), (3260, 7727)]