19641800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 49717800

約数和(自身を除く): 30076000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 53, 68, 85, 100, 106, 109, 136, 170, 200, 212, 218, 265, 340, 424, 425, 436, 530, 545, 680, 850, 872, 901, 1060, 1090, 1325, 1700, 1802, 1853, 2120, 2180, 2650, 2725, 3400, 3604, 3706, 4360, 4505, 5300, 5450, 5777, 7208, 7412, 9010, 9265, 10600, 10900, 11554, 14824, 18020, 18530, 21800, 22525, 23108, 28885, 36040, 37060, 45050, 46216, 46325, 57770, 74120, 90100, 92650, 98209, 115540, 144425, 180200, 185300, 196418, 231080, 288850, 370600, 392836, 491045, 577700, 785672, 982090, 1155400, 1964180, 2455225, 3928360, 4910450, 9820900, 19641800]

約数ペア:

[(1, 19641800), (2, 9820900), (4, 4910450), (5, 3928360), (8, 2455225), (10, 1964180), (17, 1155400), (20, 982090), (25, 785672), (34, 577700), (40, 491045), (50, 392836), (53, 370600), (68, 288850), (85, 231080), (100, 196418), (106, 185300), (109, 180200), (136, 144425), (170, 115540), (200, 98209), (212, 92650), (218, 90100), (265, 74120), (340, 57770), (424, 46325), (425, 46216), (436, 45050), (530, 37060), (545, 36040), (680, 28885), (850, 23108), (872, 22525), (901, 21800), (1060, 18530), (1090, 18020), (1325, 14824), (1700, 11554), (1802, 10900), (1853, 10600), (2120, 9265), (2180, 9010), (2650, 7412), (2725, 7208), (3400, 5777), (3604, 5450), (3706, 5300), (4360, 4505)]