2003540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1301}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 5249664

約数和(自身を除く): 3246124

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1301, 1540, 2602, 5204, 6505, 9107, 13010, 14311, 18214, 26020, 28622, 36428, 45535, 57244, 71555, 91070, 100177, 143110, 182140, 200354, 286220, 400708, 500885, 1001770, 2003540]

約数ペア:

[(1, 2003540), (2, 1001770), (4, 500885), (5, 400708), (7, 286220), (10, 200354), (11, 182140), (14, 143110), (20, 100177), (22, 91070), (28, 71555), (35, 57244), (44, 45535), (55, 36428), (70, 28622), (77, 26020), (110, 18214), (140, 14311), (154, 13010), (220, 9107), (308, 6505), (385, 5204), (770, 2602), (1301, 1540)]