990810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:223

約数の個数: 48

約数和(自身を含む): 2625480

約数和(自身を除く): 1634670

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 101, 109, 202, 218, 303, 327, 505, 545, 606, 654, 909, 981, 1010, 1090, 1515, 1635, 1818, 1962, 3030, 3270, 4545, 4905, 9090, 9810, 11009, 22018, 33027, 55045, 66054, 99081, 110090, 165135, 198162, 330270, 495405, 990810]

約数ペア:

[(1, 990810), (2, 495405), (3, 330270), (5, 198162), (6, 165135), (9, 110090), (10, 99081), (15, 66054), (18, 55045), (30, 33027), (45, 22018), (90, 11009), (101, 9810), (109, 9090), (202, 4905), (218, 4545), (303, 3270), (327, 3030), (505, 1962), (545, 1818), (606, 1635), (654, 1515), (909, 1090), (981, 1010)]