54398440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31627}}^1$

素因数の和:31681

約数の個数: 32

約数和(自身を含む): 125246880

約数和(自身を除く): 70848440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 31627, 63254, 126508, 158135, 253016, 316270, 632540, 1265080, 1359961, 2719922, 5439844, 6799805, 10879688, 13599610, 27199220, 54398440]

約数ペア:

[(1, 54398440), (2, 27199220), (4, 13599610), (5, 10879688), (8, 6799805), (10, 5439844), (20, 2719922), (40, 1359961), (43, 1265080), (86, 632540), (172, 316270), (215, 253016), (344, 158135), (430, 126508), (860, 63254), (1720, 31627)]