18245720

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1307}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 41202000

約数和(自身を除く): 22956280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1307, 1396, 1745, 2614, 2792, 3490, 5228, 6535, 6980, 10456, 13070, 13960, 26140, 52280, 456143, 912286, 1824572, 2280715, 3649144, 4561430, 9122860, 18245720]

約数ペア:

[(1, 18245720), (2, 9122860), (4, 4561430), (5, 3649144), (8, 2280715), (10, 1824572), (20, 912286), (40, 456143), (349, 52280), (698, 26140), (1307, 13960), (1396, 13070), (1745, 10456), (2614, 6980), (2792, 6535), (3490, 5228)]