1990890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2011}}^1$

素因数の和:2035

約数の個数: 48

約数和(自身を含む): 5649696

約数和(自身を除く): 3658806

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, 2011, 4022, 6033, 10055, 12066, 18099, 20110, 22121, 30165, 36198, 44242, 60330, 66363, 90495, 110605, 132726, 180990, 199089, 221210, 331815, 398178, 663630, 995445, 1990890]

約数ペア:

[(1, 1990890), (2, 995445), (3, 663630), (5, 398178), (6, 331815), (9, 221210), (10, 199089), (11, 180990), (15, 132726), (18, 110605), (22, 90495), (30, 66363), (33, 60330), (45, 44242), (55, 36198), (66, 30165), (90, 22121), (99, 20110), (110, 18099), (165, 12066), (198, 10055), (330, 6033), (495, 4022), (990, 2011)]