157217785

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 205286400

約数和(自身を除く): 48068615

約数列:

[1, 5, 17, 71, 85, 109, 239, 355, 545, 1195, 1207, 1853, 4063, 6035, 7739, 9265, 16969, 20315, 26051, 38695, 84845, 130255, 131563, 288473, 442867, 657815, 1442365, 1849621, 2214335, 9248105, 31443557, 157217785]

約数ペア:

[(1, 157217785), (5, 31443557), (17, 9248105), (71, 2214335), (85, 1849621), (109, 1442365), (239, 657815), (355, 442867), (545, 288473), (1195, 131563), (1207, 130255), (1853, 84845), (4063, 38695), (6035, 26051), (7739, 20315), (9265, 16969)]