19981610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{487}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 39422592

約数和(自身を除く): 19440982

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 373, 487, 746, 974, 1865, 2435, 3730, 4103, 4870, 5357, 8206, 10714, 20515, 26785, 41030, 53570, 181651, 363302, 908255, 1816510, 1998161, 3996322, 9990805, 19981610]

約数ペア:

[(1, 19981610), (2, 9990805), (5, 3996322), (10, 1998161), (11, 1816510), (22, 908255), (55, 363302), (110, 181651), (373, 53570), (487, 41030), (746, 26785), (974, 20515), (1865, 10714), (2435, 8206), (3730, 5357), (4103, 4870)]