19720920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{164341}}^1$

素因数の和:164355

約数の個数: 32

約数和(自身を含む): 59163120

約数和(自身を除く): 39442200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 164341, 328682, 493023, 657364, 821705, 986046, 1314728, 1643410, 1972092, 2465115, 3286820, 3944184, 4930230, 6573640, 9860460, 19720920]

約数ペア:

[(1, 19720920), (2, 9860460), (3, 6573640), (4, 4930230), (5, 3944184), (6, 3286820), (8, 2465115), (10, 1972092), (12, 1643410), (15, 1314728), (20, 986046), (24, 821705), (30, 657364), (40, 493023), (60, 328682), (120, 164341)]