18047708

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 37632000

約数和(自身を除く): 19584292

約数列:

[1, 2, 4, 7, 14, 28, 41, 79, 82, 158, 164, 199, 287, 316, 398, 553, 574, 796, 1106, 1148, 1393, 2212, 2786, 3239, 5572, 6478, 8159, 12956, 15721, 16318, 22673, 31442, 32636, 45346, 57113, 62884, 90692, 110047, 114226, 220094, 228452, 440188, 644561, 1289122, 2578244, 4511927, 9023854, 18047708]

約数ペア:

[(1, 18047708), (2, 9023854), (4, 4511927), (7, 2578244), (14, 1289122), (28, 644561), (41, 440188), (79, 228452), (82, 220094), (158, 114226), (164, 110047), (199, 90692), (287, 62884), (316, 57113), (398, 45346), (553, 32636), (574, 31442), (796, 22673), (1106, 16318), (1148, 15721), (1393, 12956), (2212, 8159), (2786, 6478), (3239, 5572)]