80194000

素因数分解:

$2^4\times 5^3\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:521

約数の個数: 80

約数和(自身を含む): 196322256

約数和(自身を除く): 116128256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 125, 200, 202, 250, 397, 400, 404, 500, 505, 794, 808, 1000, 1010, 1588, 1616, 1985, 2000, 2020, 2525, 3176, 3970, 4040, 5050, 6352, 7940, 8080, 9925, 10100, 12625, 15880, 19850, 20200, 25250, 31760, 39700, 40097, 40400, 49625, 50500, 79400, 80194, 99250, 101000, 158800, 160388, 198500, 200485, 202000, 320776, 397000, 400970, 641552, 794000, 801940, 1002425, 1603880, 2004850, 3207760, 4009700, 5012125, 8019400, 10024250, 16038800, 20048500, 40097000, 80194000]

約数ペア:

[(1, 80194000), (2, 40097000), (4, 20048500), (5, 16038800), (8, 10024250), (10, 8019400), (16, 5012125), (20, 4009700), (25, 3207760), (40, 2004850), (50, 1603880), (80, 1002425), (100, 801940), (101, 794000), (125, 641552), (200, 400970), (202, 397000), (250, 320776), (397, 202000), (400, 200485), (404, 198500), (500, 160388), (505, 158800), (794, 101000), (808, 99250), (1000, 80194), (1010, 79400), (1588, 50500), (1616, 49625), (1985, 40400), (2000, 40097), (2020, 39700), (2525, 31760), (3176, 25250), (3970, 20200), (4040, 19850), (5050, 15880), (6352, 12625), (7940, 10100), (8080, 9925)]