91908990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10111}}^1$

素因数の和:10225

約数の個数: 48

約数和(自身を含む): 241353216

約数和(自身を除く): 149444226

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 101, 202, 303, 505, 606, 909, 1010, 1515, 1818, 3030, 4545, 9090, 10111, 20222, 30333, 50555, 60666, 90999, 101110, 151665, 181998, 303330, 454995, 909990, 1021211, 2042422, 3063633, 5106055, 6127266, 9190899, 10212110, 15318165, 18381798, 30636330, 45954495, 91908990]

約数ペア:

[(1, 91908990), (2, 45954495), (3, 30636330), (5, 18381798), (6, 15318165), (9, 10212110), (10, 9190899), (15, 6127266), (18, 5106055), (30, 3063633), (45, 2042422), (90, 1021211), (101, 909990), (202, 454995), (303, 303330), (505, 181998), (606, 151665), (909, 101110), (1010, 90999), (1515, 60666), (1818, 50555), (3030, 30333), (4545, 20222), (9090, 10111)]