20617560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57271}}^1$

素因数の和:57288

約数の個数: 48

約数和(自身を含む): 67008240

約数和(自身を除く): 46390680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57271, 114542, 171813, 229084, 286355, 343626, 458168, 515439, 572710, 687252, 859065, 1030878, 1145420, 1374504, 1718130, 2061756, 2290840, 2577195, 3436260, 4123512, 5154390, 6872520, 10308780, 20617560]

約数ペア:

[(1, 20617560), (2, 10308780), (3, 6872520), (4, 5154390), (5, 4123512), (6, 3436260), (8, 2577195), (9, 2290840), (10, 2061756), (12, 1718130), (15, 1374504), (18, 1145420), (20, 1030878), (24, 859065), (30, 687252), (36, 572710), (40, 515439), (45, 458168), (60, 343626), (72, 286355), (90, 229084), (120, 171813), (180, 114542), (360, 57271)]