145156280

素因数分解:

$2^3\times 5^1\times {\mathrm{907}}^1\times {\mathrm{4001}}^1$

素因数の和:4919

約数の個数: 32

約数和(自身を含む): 327043440

約数和(自身を除く): 181887160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 907, 1814, 3628, 4001, 4535, 7256, 8002, 9070, 16004, 18140, 20005, 32008, 36280, 40010, 80020, 160040, 3628907, 7257814, 14515628, 18144535, 29031256, 36289070, 72578140, 145156280]

約数ペア:

[(1, 145156280), (2, 72578140), (4, 36289070), (5, 29031256), (8, 18144535), (10, 14515628), (20, 7257814), (40, 3628907), (907, 160040), (1814, 80020), (3628, 40010), (4001, 36280), (4535, 32008), (7256, 20005), (8002, 18140), (9070, 16004)]