219997750

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{17959}}^1$

素因数の和:17990

約数の個数: 48

約数和(自身を含む): 479100960

約数和(自身を除く): 259103210

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 350, 490, 875, 1225, 1750, 2450, 6125, 12250, 17959, 35918, 89795, 125713, 179590, 251426, 448975, 628565, 879991, 897950, 1257130, 1759982, 2244875, 3142825, 4399955, 4489750, 6285650, 8799910, 15714125, 21999775, 31428250, 43999550, 109998875, 219997750]

約数ペア:

[(1, 219997750), (2, 109998875), (5, 43999550), (7, 31428250), (10, 21999775), (14, 15714125), (25, 8799910), (35, 6285650), (49, 4489750), (50, 4399955), (70, 3142825), (98, 2244875), (125, 1759982), (175, 1257130), (245, 897950), (250, 879991), (350, 628565), (490, 448975), (875, 251426), (1225, 179590), (1750, 125713), (2450, 89795), (6125, 35918), (12250, 17959)]