20979540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38851}}^1$

素因数の和:38869

約数の個数: 48

約数和(自身を含む): 65271360

約数和(自身を除く): 44291820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38851, 77702, 116553, 155404, 194255, 233106, 349659, 388510, 466212, 582765, 699318, 777020, 1048977, 1165530, 1398636, 1748295, 2097954, 2331060, 3496590, 4195908, 5244885, 6993180, 10489770, 20979540]

約数ペア:

[(1, 20979540), (2, 10489770), (3, 6993180), (4, 5244885), (5, 4195908), (6, 3496590), (9, 2331060), (10, 2097954), (12, 1748295), (15, 1398636), (18, 1165530), (20, 1048977), (27, 777020), (30, 699318), (36, 582765), (45, 466212), (54, 388510), (60, 349659), (90, 233106), (108, 194255), (135, 155404), (180, 116553), (270, 77702), (540, 38851)]