19857900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{1789}}^1$

素因数の和:1843

約数の個数: 72

約数和(自身を含む): 59041360

約数和(自身を除く): 39183460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 37, 50, 60, 74, 75, 100, 111, 148, 150, 185, 222, 300, 370, 444, 555, 740, 925, 1110, 1789, 1850, 2220, 2775, 3578, 3700, 5367, 5550, 7156, 8945, 10734, 11100, 17890, 21468, 26835, 35780, 44725, 53670, 66193, 89450, 107340, 132386, 134175, 178900, 198579, 264772, 268350, 330965, 397158, 536700, 661930, 794316, 992895, 1323860, 1654825, 1985790, 3309650, 3971580, 4964475, 6619300, 9928950, 19857900]

約数ペア:

[(1, 19857900), (2, 9928950), (3, 6619300), (4, 4964475), (5, 3971580), (6, 3309650), (10, 1985790), (12, 1654825), (15, 1323860), (20, 992895), (25, 794316), (30, 661930), (37, 536700), (50, 397158), (60, 330965), (74, 268350), (75, 264772), (100, 198579), (111, 178900), (148, 134175), (150, 132386), (185, 107340), (222, 89450), (300, 66193), (370, 53670), (444, 44725), (555, 35780), (740, 26835), (925, 21468), (1110, 17890), (1789, 11100), (1850, 10734), (2220, 8945), (2775, 7156), (3578, 5550), (3700, 5367)]