247124440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{143677}}^1$

素因数の和:143731

約数の個数: 32

約数和(自身を含む): 568964880

約数和(自身を除く): 321840440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 143677, 287354, 574708, 718385, 1149416, 1436770, 2873540, 5747080, 6178111, 12356222, 24712444, 30890555, 49424888, 61781110, 123562220, 247124440]

約数ペア:

[(1, 247124440), (2, 123562220), (4, 61781110), (5, 49424888), (8, 30890555), (10, 24712444), (20, 12356222), (40, 6178111), (43, 5747080), (86, 2873540), (172, 1436770), (215, 1149416), (344, 718385), (430, 574708), (860, 287354), (1720, 143677)]