20641560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4649}}^1$

素因数の和:4700

約数の個数: 64

約数和(自身を含む): 63612000

約数和(自身を除く): 42970440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4649, 9298, 13947, 18596, 23245, 27894, 37192, 46490, 55788, 69735, 92980, 111576, 139470, 172013, 185960, 278940, 344026, 516039, 557880, 688052, 860065, 1032078, 1376104, 1720130, 2064156, 2580195, 3440260, 4128312, 5160390, 6880520, 10320780, 20641560]

約数ペア:

[(1, 20641560), (2, 10320780), (3, 6880520), (4, 5160390), (5, 4128312), (6, 3440260), (8, 2580195), (10, 2064156), (12, 1720130), (15, 1376104), (20, 1032078), (24, 860065), (30, 688052), (37, 557880), (40, 516039), (60, 344026), (74, 278940), (111, 185960), (120, 172013), (148, 139470), (185, 111576), (222, 92980), (296, 69735), (370, 55788), (444, 46490), (555, 37192), (740, 27894), (888, 23245), (1110, 18596), (1480, 13947), (2220, 9298), (4440, 4649)]