20640300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{643}}^1$

素因数の和:767

約数の個数: 72

約数和(自身を含む): 60371136

約数和(自身を除く): 39730836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 107, 150, 214, 300, 321, 428, 535, 642, 643, 1070, 1284, 1286, 1605, 1929, 2140, 2572, 2675, 3210, 3215, 3858, 5350, 6420, 6430, 7716, 8025, 9645, 10700, 12860, 16050, 16075, 19290, 32100, 32150, 38580, 48225, 64300, 68801, 96450, 137602, 192900, 206403, 275204, 344005, 412806, 688010, 825612, 1032015, 1376020, 1720025, 2064030, 3440050, 4128060, 5160075, 6880100, 10320150, 20640300]

約数ペア:

[(1, 20640300), (2, 10320150), (3, 6880100), (4, 5160075), (5, 4128060), (6, 3440050), (10, 2064030), (12, 1720025), (15, 1376020), (20, 1032015), (25, 825612), (30, 688010), (50, 412806), (60, 344005), (75, 275204), (100, 206403), (107, 192900), (150, 137602), (214, 96450), (300, 68801), (321, 64300), (428, 48225), (535, 38580), (642, 32150), (643, 32100), (1070, 19290), (1284, 16075), (1286, 16050), (1605, 12860), (1929, 10700), (2140, 9645), (2572, 8025), (2675, 7716), (3210, 6430), (3215, 6420), (3858, 5350)]