20288790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{225431}}^1$

素因数の和:225444

約数の個数: 24

約数和(自身を含む): 52751088

約数和(自身を除く): 32462298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 225431, 450862, 676293, 1127155, 1352586, 2028879, 2254310, 3381465, 4057758, 6762930, 10144395, 20288790]

約数ペア:

[(1, 20288790), (2, 10144395), (3, 6762930), (5, 4057758), (6, 3381465), (9, 2254310), (10, 2028879), (15, 1352586), (18, 1127155), (30, 676293), (45, 450862), (90, 225431)]