2639540

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{487}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 5574912

約数和(自身を除く): 2935372

約数列:

[1, 2, 4, 5, 10, 20, 271, 487, 542, 974, 1084, 1355, 1948, 2435, 2710, 4870, 5420, 9740, 131977, 263954, 527908, 659885, 1319770, 2639540]

約数ペア:

[(1, 2639540), (2, 1319770), (4, 659885), (5, 527908), (10, 263954), (20, 131977), (271, 9740), (487, 5420), (542, 4870), (974, 2710), (1084, 2435), (1355, 1948)]