20244980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3527}}^1$

素因数の和:3584

約数の個数: 48

約数和(自身を含む): 49787136

約数和(自身を除く): 29542156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3527, 5740, 7054, 14108, 17635, 24689, 35270, 49378, 70540, 98756, 123445, 144607, 246890, 289214, 493780, 578428, 723035, 1012249, 1446070, 2024498, 2892140, 4048996, 5061245, 10122490, 20244980]

約数ペア:

[(1, 20244980), (2, 10122490), (4, 5061245), (5, 4048996), (7, 2892140), (10, 2024498), (14, 1446070), (20, 1012249), (28, 723035), (35, 578428), (41, 493780), (70, 289214), (82, 246890), (140, 144607), (164, 123445), (205, 98756), (287, 70540), (410, 49378), (574, 35270), (820, 24689), (1148, 17635), (1435, 14108), (2870, 7054), (3527, 5740)]