2582740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 5780880

約数和(自身を除く): 3198140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 73, 116, 122, 145, 146, 244, 290, 292, 305, 365, 580, 610, 730, 1220, 1460, 1769, 2117, 3538, 4234, 4453, 7076, 8468, 8845, 8906, 10585, 17690, 17812, 21170, 22265, 35380, 42340, 44530, 89060, 129137, 258274, 516548, 645685, 1291370, 2582740]

約数ペア:

[(1, 2582740), (2, 1291370), (4, 645685), (5, 516548), (10, 258274), (20, 129137), (29, 89060), (58, 44530), (61, 42340), (73, 35380), (116, 22265), (122, 21170), (145, 17812), (146, 17690), (244, 10585), (290, 8906), (292, 8845), (305, 8468), (365, 7076), (580, 4453), (610, 4234), (730, 3538), (1220, 2117), (1460, 1769)]