28705140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{159473}}^1$

素因数の和:159488

約数の個数: 36

約数和(自身を含む): 87072804

約数和(自身を除く): 58367664

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 159473, 318946, 478419, 637892, 797365, 956838, 1435257, 1594730, 1913676, 2392095, 2870514, 3189460, 4784190, 5741028, 7176285, 9568380, 14352570, 28705140]

約数ペア:

[(1, 28705140), (2, 14352570), (3, 9568380), (4, 7176285), (5, 5741028), (6, 4784190), (9, 3189460), (10, 2870514), (12, 2392095), (15, 1913676), (18, 1594730), (20, 1435257), (30, 956838), (36, 797365), (45, 637892), (60, 478419), (90, 318946), (180, 159473)]