8242580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 18480000

約数和(自身を除く): 10237420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 199, 218, 380, 398, 436, 545, 796, 995, 1090, 1990, 2071, 2180, 3781, 3980, 4142, 7562, 8284, 10355, 15124, 18905, 20710, 21691, 37810, 41420, 43382, 75620, 86764, 108455, 216910, 412129, 433820, 824258, 1648516, 2060645, 4121290, 8242580]

約数ペア:

[(1, 8242580), (2, 4121290), (4, 2060645), (5, 1648516), (10, 824258), (19, 433820), (20, 412129), (38, 216910), (76, 108455), (95, 86764), (109, 75620), (190, 43382), (199, 41420), (218, 37810), (380, 21691), (398, 20710), (436, 18905), (545, 15124), (796, 10355), (995, 8284), (1090, 7562), (1990, 4142), (2071, 3980), (2180, 3781)]