81660850

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^2\times {\mathrm{1193}}^1$

素因数の和:1279

約数の個数: 36

約数和(自身を含む): 156236094

約数和(自身を除く): 74575244

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 185, 370, 925, 1193, 1369, 1850, 2386, 2738, 5965, 6845, 11930, 13690, 29825, 34225, 44141, 59650, 68450, 88282, 220705, 441410, 1103525, 1633217, 2207050, 3266434, 8166085, 16332170, 40830425, 81660850]

約数ペア:

[(1, 81660850), (2, 40830425), (5, 16332170), (10, 8166085), (25, 3266434), (37, 2207050), (50, 1633217), (74, 1103525), (185, 441410), (370, 220705), (925, 88282), (1193, 68450), (1369, 59650), (1850, 44141), (2386, 34225), (2738, 29825), (5965, 13690), (6845, 11930)]