1115420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1297}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 2398704

約数和(自身を除く): 1283284

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1297, 2594, 5188, 6485, 12970, 25940, 55771, 111542, 223084, 278855, 557710, 1115420]

約数ペア:

[(1, 1115420), (2, 557710), (4, 278855), (5, 223084), (10, 111542), (20, 55771), (43, 25940), (86, 12970), (172, 6485), (215, 5188), (430, 2594), (860, 1297)]