748840520

素因数分解:

$2^3\times 5^1\times {\mathrm{2351}}^1\times {\mathrm{7963}}^1$

素因数の和:10325

約数の個数: 32

約数和(自身を含む): 1685819520

約数和(自身を除く): 936979000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2351, 4702, 7963, 9404, 11755, 15926, 18808, 23510, 31852, 39815, 47020, 63704, 79630, 94040, 159260, 318520, 18721013, 37442026, 74884052, 93605065, 149768104, 187210130, 374420260, 748840520]

約数ペア:

[(1, 748840520), (2, 374420260), (4, 187210130), (5, 149768104), (8, 93605065), (10, 74884052), (20, 37442026), (40, 18721013), (2351, 318520), (4702, 159260), (7963, 94040), (9404, 79630), (11755, 63704), (15926, 47020), (18808, 39815), (23510, 31852)]