28361800

素因数分解:

$2^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{1301}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 66597300

約数和(自身を除く): 38235500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 200, 218, 436, 545, 872, 1090, 1301, 2180, 2602, 2725, 4360, 5204, 5450, 6505, 10408, 10900, 13010, 21800, 26020, 32525, 52040, 65050, 130100, 141809, 260200, 283618, 567236, 709045, 1134472, 1418090, 2836180, 3545225, 5672360, 7090450, 14180900, 28361800]

約数ペア:

[(1, 28361800), (2, 14180900), (4, 7090450), (5, 5672360), (8, 3545225), (10, 2836180), (20, 1418090), (25, 1134472), (40, 709045), (50, 567236), (100, 283618), (109, 260200), (200, 141809), (218, 130100), (436, 65050), (545, 52040), (872, 32525), (1090, 26020), (1301, 21800), (2180, 13010), (2602, 10900), (2725, 10408), (4360, 6505), (5204, 5450)]