421489150

素因数分解:

$2^1\times 5^2\times {\mathrm{1999}}^1\times {\mathrm{4217}}^1$

素因数の和:6228

約数の個数: 24

約数和(自身を含む): 784548000

約数和(自身を除く): 363058850

約数列:

[1, 2, 5, 10, 25, 50, 1999, 3998, 4217, 8434, 9995, 19990, 21085, 42170, 49975, 99950, 105425, 210850, 8429783, 16859566, 42148915, 84297830, 210744575, 421489150]

約数ペア:

[(1, 421489150), (2, 210744575), (5, 84297830), (10, 42148915), (25, 16859566), (50, 8429783), (1999, 210850), (3998, 105425), (4217, 99950), (8434, 49975), (9995, 42170), (19990, 21085)]