1245740

素因数分解:

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

素因数の和:521

約数の個数: 24

約数和(自身を含む): 2637600

約数和(自身を除く): 1391860

約数列:

[1, 2, 4, 5, 10, 20, 199, 313, 398, 626, 796, 995, 1252, 1565, 1990, 3130, 3980, 6260, 62287, 124574, 249148, 311435, 622870, 1245740]

約数ペア:

[(1, 1245740), (2, 622870), (4, 311435), (5, 249148), (10, 124574), (20, 62287), (199, 6260), (313, 3980), (398, 3130), (626, 1990), (796, 1565), (995, 1252)]