80757520

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4447}}^1$

素因数の和:4687

約数の個数: 40

約数和(自身を含む): 188630784

約数和(自身を除く): 107873264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1816, 2270, 3632, 4447, 4540, 8894, 9080, 17788, 18160, 22235, 35576, 44470, 71152, 88940, 177880, 355760, 1009469, 2018938, 4037876, 5047345, 8075752, 10094690, 16151504, 20189380, 40378760, 80757520]

約数ペア:

[(1, 80757520), (2, 40378760), (4, 20189380), (5, 16151504), (8, 10094690), (10, 8075752), (16, 5047345), (20, 4037876), (40, 2018938), (80, 1009469), (227, 355760), (454, 177880), (908, 88940), (1135, 71152), (1816, 44470), (2270, 35576), (3632, 22235), (4447, 18160), (4540, 17788), (8894, 9080)]