28398780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157771}}^1$

素因数の和:157786

約数の個数: 36

約数和(自身を含む): 86143512

約数和(自身を除く): 57744732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 157771, 315542, 473313, 631084, 788855, 946626, 1419939, 1577710, 1893252, 2366565, 2839878, 3155420, 4733130, 5679756, 7099695, 9466260, 14199390, 28398780]

約数ペア:

[(1, 28398780), (2, 14199390), (3, 9466260), (4, 7099695), (5, 5679756), (6, 4733130), (9, 3155420), (10, 2839878), (12, 2366565), (15, 1893252), (18, 1577710), (20, 1419939), (30, 946626), (36, 788855), (45, 631084), (60, 473313), (90, 315542), (180, 157771)]