2196440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1277}}^1$

素因数の和:1331

約数の個数: 32

約数和(自身を含む): 5060880

約数和(自身を除く): 2864440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1277, 1720, 2554, 5108, 6385, 10216, 12770, 25540, 51080, 54911, 109822, 219644, 274555, 439288, 549110, 1098220, 2196440]

約数ペア:

[(1, 2196440), (2, 1098220), (4, 549110), (5, 439288), (8, 274555), (10, 219644), (20, 109822), (40, 54911), (43, 51080), (86, 25540), (172, 12770), (215, 10216), (344, 6385), (430, 5108), (860, 2554), (1277, 1720)]