2161400

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 5122440

約数和(自身を除く): 2961040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 107, 200, 202, 214, 404, 428, 505, 535, 808, 856, 1010, 1070, 2020, 2140, 2525, 2675, 4040, 4280, 5050, 5350, 10100, 10700, 10807, 20200, 21400, 21614, 43228, 54035, 86456, 108070, 216140, 270175, 432280, 540350, 1080700, 2161400]

約数ペア:

[(1, 2161400), (2, 1080700), (4, 540350), (5, 432280), (8, 270175), (10, 216140), (20, 108070), (25, 86456), (40, 54035), (50, 43228), (100, 21614), (101, 21400), (107, 20200), (200, 10807), (202, 10700), (214, 10100), (404, 5350), (428, 5050), (505, 4280), (535, 4040), (808, 2675), (856, 2525), (1010, 2140), (1070, 2020)]