38490580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{509}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 85680000

約数和(自身を除く): 47189420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 509, 796, 995, 1018, 1990, 2036, 2545, 3781, 3980, 5090, 7562, 9671, 10180, 15124, 18905, 19342, 37810, 38684, 48355, 75620, 96710, 101291, 193420, 202582, 405164, 506455, 1012910, 1924529, 2025820, 3849058, 7698116, 9622645, 19245290, 38490580]

約数ペア:

[(1, 38490580), (2, 19245290), (4, 9622645), (5, 7698116), (10, 3849058), (19, 2025820), (20, 1924529), (38, 1012910), (76, 506455), (95, 405164), (190, 202582), (199, 193420), (380, 101291), (398, 96710), (509, 75620), (796, 48355), (995, 38684), (1018, 37810), (1990, 19342), (2036, 18905), (2545, 15124), (3781, 10180), (3980, 9671), (5090, 7562)]