80505000

素因数分解:

$2^3\times 3^2\times 5^4\times {\mathrm{1789}}^1$

素因数の和:1821

約数の個数: 120

約数和(自身を含む): 272608050

約数和(自身を除く): 192103050

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 450, 500, 600, 625, 750, 900, 1000, 1125, 1250, 1500, 1789, 1800, 1875, 2250, 2500, 3000, 3578, 3750, 4500, 5000, 5367, 5625, 7156, 7500, 8945, 9000, 10734, 11250, 14312, 15000, 16101, 17890, 21468, 22500, 26835, 32202, 35780, 42936, 44725, 45000, 53670, 64404, 71560, 80505, 89450, 107340, 128808, 134175, 161010, 178900, 214680, 223625, 268350, 322020, 357800, 402525, 447250, 536700, 644040, 670875, 805050, 894500, 1073400, 1118125, 1341750, 1610100, 1789000, 2012625, 2236250, 2683500, 3220200, 3354375, 4025250, 4472500, 5367000, 6708750, 8050500, 8945000, 10063125, 13417500, 16101000, 20126250, 26835000, 40252500, 80505000]

約数ペア:

[(1, 80505000), (2, 40252500), (3, 26835000), (4, 20126250), (5, 16101000), (6, 13417500), (8, 10063125), (9, 8945000), (10, 8050500), (12, 6708750), (15, 5367000), (18, 4472500), (20, 4025250), (24, 3354375), (25, 3220200), (30, 2683500), (36, 2236250), (40, 2012625), (45, 1789000), (50, 1610100), (60, 1341750), (72, 1118125), (75, 1073400), (90, 894500), (100, 805050), (120, 670875), (125, 644040), (150, 536700), (180, 447250), (200, 402525), (225, 357800), (250, 322020), (300, 268350), (360, 223625), (375, 214680), (450, 178900), (500, 161010), (600, 134175), (625, 128808), (750, 107340), (900, 89450), (1000, 80505), (1125, 71560), (1250, 64404), (1500, 53670), (1789, 45000), (1800, 44725), (1875, 42936), (2250, 35780), (2500, 32202), (3000, 26835), (3578, 22500), (3750, 21468), (4500, 17890), (5000, 16101), (5367, 15000), (5625, 14312), (7156, 11250), (7500, 10734), (8945, 9000)]