2491480

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{313}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 5652000

約数和(自身を除く): 3160520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 313, 398, 626, 796, 995, 1252, 1565, 1592, 1990, 2504, 3130, 3980, 6260, 7960, 12520, 62287, 124574, 249148, 311435, 498296, 622870, 1245740, 2491480]

約数ペア:

[(1, 2491480), (2, 1245740), (4, 622870), (5, 498296), (8, 311435), (10, 249148), (20, 124574), (40, 62287), (199, 12520), (313, 7960), (398, 6260), (626, 3980), (796, 3130), (995, 2504), (1252, 1990), (1565, 1592)]