25455500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{1039}}^1$

素因数の和:1072

約数の個数: 72

約数和(自身を含む): 64733760

約数和(自身を除く): 39278260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 700, 875, 980, 1039, 1225, 1750, 2078, 2450, 3500, 4156, 4900, 5195, 6125, 7273, 10390, 12250, 14546, 20780, 24500, 25975, 29092, 36365, 50911, 51950, 72730, 101822, 103900, 129875, 145460, 181825, 203644, 254555, 259750, 363650, 509110, 519500, 727300, 909125, 1018220, 1272775, 1818250, 2545550, 3636500, 5091100, 6363875, 12727750, 25455500]

約数ペア:

[(1, 25455500), (2, 12727750), (4, 6363875), (5, 5091100), (7, 3636500), (10, 2545550), (14, 1818250), (20, 1272775), (25, 1018220), (28, 909125), (35, 727300), (49, 519500), (50, 509110), (70, 363650), (98, 259750), (100, 254555), (125, 203644), (140, 181825), (175, 145460), (196, 129875), (245, 103900), (250, 101822), (350, 72730), (490, 51950), (500, 50911), (700, 36365), (875, 29092), (980, 25975), (1039, 24500), (1225, 20780), (1750, 14546), (2078, 12250), (2450, 10390), (3500, 7273), (4156, 6125), (4900, 5195)]