858500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:137

約数の個数: 48

約数和(自身を含む): 2004912

約数和(自身を除く): 1146412

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 101, 125, 170, 202, 250, 340, 404, 425, 500, 505, 850, 1010, 1700, 1717, 2020, 2125, 2525, 3434, 4250, 5050, 6868, 8500, 8585, 10100, 12625, 17170, 25250, 34340, 42925, 50500, 85850, 171700, 214625, 429250, 858500]

約数ペア:

[(1, 858500), (2, 429250), (4, 214625), (5, 171700), (10, 85850), (17, 50500), (20, 42925), (25, 34340), (34, 25250), (50, 17170), (68, 12625), (85, 10100), (100, 8585), (101, 8500), (125, 6868), (170, 5050), (202, 4250), (250, 3434), (340, 2525), (404, 2125), (425, 2020), (500, 1717), (505, 1700), (850, 1010)]