28128420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156269}}^1$

素因数の和:156284

約数の個数: 36

約数和(自身を含む): 85323420

約数和(自身を除く): 57195000

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156269, 312538, 468807, 625076, 781345, 937614, 1406421, 1562690, 1875228, 2344035, 2812842, 3125380, 4688070, 5625684, 7032105, 9376140, 14064210, 28128420]

約数ペア:

[(1, 28128420), (2, 14064210), (3, 9376140), (4, 7032105), (5, 5625684), (6, 4688070), (9, 3125380), (10, 2812842), (12, 2344035), (15, 1875228), (18, 1562690), (20, 1406421), (30, 937614), (36, 781345), (45, 625076), (60, 468807), (90, 312538), (180, 156269)]