27371420

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1381}}^1$

素因数の和:2381

約数の個数: 24

約数和(自身を含む): 57579648

約数和(自身を除く): 30208228

約数列:

[1, 2, 4, 5, 10, 20, 991, 1381, 1982, 2762, 3964, 4955, 5524, 6905, 9910, 13810, 19820, 27620, 1368571, 2737142, 5474284, 6842855, 13685710, 27371420]

約数ペア:

[(1, 27371420), (2, 13685710), (4, 6842855), (5, 5474284), (10, 2737142), (20, 1368571), (991, 27620), (1381, 19820), (1982, 13810), (2762, 9910), (3964, 6905), (4955, 5524)]