260204920

素因数分解:

$2^3\times 5^1\times {\mathrm{6505123}}^1$

素因数の和:6505134

約数の個数: 16

約数和(自身を含む): 585461160

約数和(自身を除く): 325256240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6505123, 13010246, 26020492, 32525615, 52040984, 65051230, 130102460, 260204920]

約数ペア:

[(1, 260204920), (2, 130102460), (4, 65051230), (5, 52040984), (8, 32525615), (10, 26020492), (20, 13010246), (40, 6505123)]