205545520

素因数分解:

$2^4\times 5^1\times {\mathrm{967}}^1\times {\mathrm{2657}}^1$

素因数の和:3637

約数の個数: 40

約数和(自身を含む): 478567584

約数和(自身を除く): 273022064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 967, 1934, 2657, 3868, 4835, 5314, 7736, 9670, 10628, 13285, 15472, 19340, 21256, 26570, 38680, 42512, 53140, 77360, 106280, 212560, 2569319, 5138638, 10277276, 12846595, 20554552, 25693190, 41109104, 51386380, 102772760, 205545520]

約数ペア:

[(1, 205545520), (2, 102772760), (4, 51386380), (5, 41109104), (8, 25693190), (10, 20554552), (16, 12846595), (20, 10277276), (40, 5138638), (80, 2569319), (967, 212560), (1934, 106280), (2657, 77360), (3868, 53140), (4835, 42512), (5314, 38680), (7736, 26570), (9670, 21256), (10628, 19340), (13285, 15472)]