128217780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{712321}}^1$

素因数の和:712336

約数の個数: 36

約数和(自身を含む): 388927812

約数和(自身を除く): 260710032

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 712321, 1424642, 2136963, 2849284, 3561605, 4273926, 6410889, 7123210, 8547852, 10684815, 12821778, 14246420, 21369630, 25643556, 32054445, 42739260, 64108890, 128217780]

約数ペア:

[(1, 128217780), (2, 64108890), (3, 42739260), (4, 32054445), (5, 25643556), (6, 21369630), (9, 14246420), (10, 12821778), (12, 10684815), (15, 8547852), (18, 7123210), (20, 6410889), (30, 4273926), (36, 3561605), (45, 2849284), (60, 2136963), (90, 1424642), (180, 712321)]