81297990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{903311}}^1$

素因数の和:903324

約数の個数: 24

約数和(自身を含む): 211375008

約数和(自身を除く): 130077018

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 903311, 1806622, 2709933, 4516555, 5419866, 8129799, 9033110, 13549665, 16259598, 27099330, 40648995, 81297990]

約数ペア:

[(1, 81297990), (2, 40648995), (3, 27099330), (5, 16259598), (6, 13549665), (9, 9033110), (10, 8129799), (15, 5419866), (18, 4516555), (30, 2709933), (45, 1806622), (90, 903311)]