9420440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5477}}^1$

素因数の和:5531

約数の個数: 32

約数和(自身を含む): 21692880

約数和(自身を除く): 12272440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 5477, 10954, 21908, 27385, 43816, 54770, 109540, 219080, 235511, 471022, 942044, 1177555, 1884088, 2355110, 4710220, 9420440]

約数ペア:

[(1, 9420440), (2, 4710220), (4, 2355110), (5, 1884088), (8, 1177555), (10, 942044), (20, 471022), (40, 235511), (43, 219080), (86, 109540), (172, 54770), (215, 43816), (344, 27385), (430, 21908), (860, 10954), (1720, 5477)]