2025765400

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{128213}}^1$

素因数の和:128308

約数の個数: 48

約数和(自身を含む): 4769560800

約数和(自身を除く): 2743795400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1580, 1975, 3160, 3950, 7900, 15800, 128213, 256426, 512852, 641065, 1025704, 1282130, 2564260, 3205325, 5128520, 6410650, 10128827, 12821300, 20257654, 25642600, 40515308, 50644135, 81030616, 101288270, 202576540, 253220675, 405153080, 506441350, 1012882700, 2025765400]

約数ペア:

[(1, 2025765400), (2, 1012882700), (4, 506441350), (5, 405153080), (8, 253220675), (10, 202576540), (20, 101288270), (25, 81030616), (40, 50644135), (50, 40515308), (79, 25642600), (100, 20257654), (158, 12821300), (200, 10128827), (316, 6410650), (395, 5128520), (632, 3205325), (790, 2564260), (1580, 1282130), (1975, 1025704), (3160, 641065), (3950, 512852), (7900, 256426), (15800, 128213)]