77812000

素因数分解:

$2^5\times 5^3\times 7^2\times {\mathrm{397}}^1$

素因数の和:436

約数の個数: 144

約数和(自身を含む): 222958008

約数和(自身を除く): 145146008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 125, 140, 160, 175, 196, 200, 224, 245, 250, 280, 350, 392, 397, 400, 490, 500, 560, 700, 784, 794, 800, 875, 980, 1000, 1120, 1225, 1400, 1568, 1588, 1750, 1960, 1985, 2000, 2450, 2779, 2800, 3176, 3500, 3920, 3970, 4000, 4900, 5558, 5600, 6125, 6352, 7000, 7840, 7940, 9800, 9925, 11116, 12250, 12704, 13895, 14000, 15880, 19453, 19600, 19850, 22232, 24500, 27790, 28000, 31760, 38906, 39200, 39700, 44464, 49000, 49625, 55580, 63520, 69475, 77812, 79400, 88928, 97265, 98000, 99250, 111160, 138950, 155624, 158800, 194530, 196000, 198500, 222320, 277900, 311248, 317600, 347375, 389060, 397000, 444640, 486325, 555800, 622496, 694750, 778120, 794000, 972650, 1111600, 1389500, 1556240, 1588000, 1945300, 2223200, 2431625, 2779000, 3112480, 3890600, 4863250, 5558000, 7781200, 9726500, 11116000, 15562400, 19453000, 38906000, 77812000]

約数ペア:

[(1, 77812000), (2, 38906000), (4, 19453000), (5, 15562400), (7, 11116000), (8, 9726500), (10, 7781200), (14, 5558000), (16, 4863250), (20, 3890600), (25, 3112480), (28, 2779000), (32, 2431625), (35, 2223200), (40, 1945300), (49, 1588000), (50, 1556240), (56, 1389500), (70, 1111600), (80, 972650), (98, 794000), (100, 778120), (112, 694750), (125, 622496), (140, 555800), (160, 486325), (175, 444640), (196, 397000), (200, 389060), (224, 347375), (245, 317600), (250, 311248), (280, 277900), (350, 222320), (392, 198500), (397, 196000), (400, 194530), (490, 158800), (500, 155624), (560, 138950), (700, 111160), (784, 99250), (794, 98000), (800, 97265), (875, 88928), (980, 79400), (1000, 77812), (1120, 69475), (1225, 63520), (1400, 55580), (1568, 49625), (1588, 49000), (1750, 44464), (1960, 39700), (1985, 39200), (2000, 38906), (2450, 31760), (2779, 28000), (2800, 27790), (3176, 24500), (3500, 22232), (3920, 19850), (3970, 19600), (4000, 19453), (4900, 15880), (5558, 14000), (5600, 13895), (6125, 12704), (6352, 12250), (7000, 11116), (7840, 9925), (7940, 9800)]