154941640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{553363}}^1$

素因数の和:553381

約数の個数: 32

約数和(自身を含む): 398422080

約数和(自身を除く): 243480440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 553363, 1106726, 2213452, 2766815, 3873541, 4426904, 5533630, 7747082, 11067260, 15494164, 19367705, 22134520, 30988328, 38735410, 77470820, 154941640]

約数ペア:

[(1, 154941640), (2, 77470820), (4, 38735410), (5, 30988328), (7, 22134520), (8, 19367705), (10, 15494164), (14, 11067260), (20, 7747082), (28, 5533630), (35, 4426904), (40, 3873541), (56, 2766815), (70, 2213452), (140, 1106726), (280, 553363)]