26731420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21911}}^1$

素因数の和:21981

約数の個数: 24

約数和(自身を含む): 57058848

約数和(自身を除く): 30327428

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 21911, 43822, 87644, 109555, 219110, 438220, 1336571, 2673142, 5346284, 6682855, 13365710, 26731420]

約数ペア:

[(1, 26731420), (2, 13365710), (4, 6682855), (5, 5346284), (10, 2673142), (20, 1336571), (61, 438220), (122, 219110), (244, 109555), (305, 87644), (610, 43822), (1220, 21911)]