9820900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 23201640

約数和(自身を除く): 13380740

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 53, 68, 85, 100, 106, 109, 170, 212, 218, 265, 340, 425, 436, 530, 545, 850, 901, 1060, 1090, 1325, 1700, 1802, 1853, 2180, 2650, 2725, 3604, 3706, 4505, 5300, 5450, 5777, 7412, 9010, 9265, 10900, 11554, 18020, 18530, 22525, 23108, 28885, 37060, 45050, 46325, 57770, 90100, 92650, 98209, 115540, 144425, 185300, 196418, 288850, 392836, 491045, 577700, 982090, 1964180, 2455225, 4910450, 9820900]

約数ペア:

[(1, 9820900), (2, 4910450), (4, 2455225), (5, 1964180), (10, 982090), (17, 577700), (20, 491045), (25, 392836), (34, 288850), (50, 196418), (53, 185300), (68, 144425), (85, 115540), (100, 98209), (106, 92650), (109, 90100), (170, 57770), (212, 46325), (218, 45050), (265, 37060), (340, 28885), (425, 23108), (436, 22525), (530, 18530), (545, 18020), (850, 11554), (901, 10900), (1060, 9265), (1090, 9010), (1325, 7412), (1700, 5777), (1802, 5450), (1853, 5300), (2180, 4505), (2650, 3706), (2725, 3604)]