99990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1$

素因数の和:125

約数の個数: 48

約数和(自身を含む): 286416

約数和(自身を除く): 186426

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 101, 110, 165, 198, 202, 303, 330, 495, 505, 606, 909, 990, 1010, 1111, 1515, 1818, 2222, 3030, 3333, 4545, 5555, 6666, 9090, 9999, 11110, 16665, 19998, 33330, 49995, 99990]

約数ペア:

[(1, 99990), (2, 49995), (3, 33330), (5, 19998), (6, 16665), (9, 11110), (10, 9999), (11, 9090), (15, 6666), (18, 5555), (22, 4545), (30, 3333), (33, 3030), (45, 2222), (55, 1818), (66, 1515), (90, 1111), (99, 1010), (101, 990), (110, 909), (165, 606), (198, 505), (202, 495), (303, 330)]