20661800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 52228800

約数和(自身を除く): 31567000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 59, 68, 85, 100, 103, 118, 136, 170, 200, 206, 236, 295, 340, 412, 425, 472, 515, 590, 680, 824, 850, 1003, 1030, 1180, 1475, 1700, 1751, 2006, 2060, 2360, 2575, 2950, 3400, 3502, 4012, 4120, 5015, 5150, 5900, 6077, 7004, 8024, 8755, 10030, 10300, 11800, 12154, 14008, 17510, 20060, 20600, 24308, 25075, 30385, 35020, 40120, 43775, 48616, 50150, 60770, 70040, 87550, 100300, 103309, 121540, 151925, 175100, 200600, 206618, 243080, 303850, 350200, 413236, 516545, 607700, 826472, 1033090, 1215400, 2066180, 2582725, 4132360, 5165450, 10330900, 20661800]

約数ペア:

[(1, 20661800), (2, 10330900), (4, 5165450), (5, 4132360), (8, 2582725), (10, 2066180), (17, 1215400), (20, 1033090), (25, 826472), (34, 607700), (40, 516545), (50, 413236), (59, 350200), (68, 303850), (85, 243080), (100, 206618), (103, 200600), (118, 175100), (136, 151925), (170, 121540), (200, 103309), (206, 100300), (236, 87550), (295, 70040), (340, 60770), (412, 50150), (425, 48616), (472, 43775), (515, 40120), (590, 35020), (680, 30385), (824, 25075), (850, 24308), (1003, 20600), (1030, 20060), (1180, 17510), (1475, 14008), (1700, 12154), (1751, 11800), (2006, 10300), (2060, 10030), (2360, 8755), (2575, 8024), (2950, 7004), (3400, 6077), (3502, 5900), (4012, 5150), (4120, 5015)]