20271780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{112621}}^1$

素因数の和:112636

約数の個数: 36

約数和(自身を含む): 61491612

約数和(自身を除く): 41219832

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 112621, 225242, 337863, 450484, 563105, 675726, 1013589, 1126210, 1351452, 1689315, 2027178, 2252420, 3378630, 4054356, 5067945, 6757260, 10135890, 20271780]

約数ペア:

[(1, 20271780), (2, 10135890), (3, 6757260), (4, 5067945), (5, 4054356), (6, 3378630), (9, 2252420), (10, 2027178), (12, 1689315), (15, 1351452), (18, 1126210), (20, 1013589), (30, 675726), (36, 563105), (45, 450484), (60, 337863), (90, 225242), (180, 112621)]