9885880

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2447}}^1$

素因数の和:2559

約数の個数: 32

約数和(自身を含む): 22472640

約数和(自身を除く): 12586760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 2447, 4040, 4894, 9788, 12235, 19576, 24470, 48940, 97880, 247147, 494294, 988588, 1235735, 1977176, 2471470, 4942940, 9885880]

約数ペア:

[(1, 9885880), (2, 4942940), (4, 2471470), (5, 1977176), (8, 1235735), (10, 988588), (20, 494294), (40, 247147), (101, 97880), (202, 48940), (404, 24470), (505, 19576), (808, 12235), (1010, 9788), (2020, 4894), (2447, 4040)]