9801990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9901}}^1$

素因数の和:9925

約数の個数: 48

約数和(自身を含む): 27804816

約数和(自身を除く): 18002826

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 9901, 19802, 29703, 49505, 59406, 89109, 99010, 108911, 148515, 178218, 217822, 297030, 326733, 445545, 544555, 653466, 891090, 980199, 1089110, 1633665, 1960398, 3267330, 4900995, 9801990]

約数ペア:

[(1, 9801990), (2, 4900995), (3, 3267330), (5, 1960398), (6, 1633665), (9, 1089110), (10, 980199), (11, 891090), (15, 653466), (18, 544555), (22, 445545), (30, 326733), (33, 297030), (45, 217822), (55, 178218), (66, 148515), (90, 108911), (99, 99010), (110, 89109), (165, 59406), (198, 49505), (330, 29703), (495, 19802), (990, 9901)]