19973360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22697}}^1$

素因数の和:22721

約数の個数: 40

約数和(自身を含む): 50661936

約数和(自身を除く): 30688576

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22697, 45394, 90788, 113485, 181576, 226970, 249667, 363152, 453940, 499334, 907880, 998668, 1248335, 1815760, 1997336, 2496670, 3994672, 4993340, 9986680, 19973360]

約数ペア:

[(1, 19973360), (2, 9986680), (4, 4993340), (5, 3994672), (8, 2496670), (10, 1997336), (11, 1815760), (16, 1248335), (20, 998668), (22, 907880), (40, 499334), (44, 453940), (55, 363152), (80, 249667), (88, 226970), (110, 181576), (176, 113485), (220, 90788), (440, 45394), (880, 22697)]