161228788

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{81101}}^1$

素因数の和:81183

約数の個数: 24

約数和(自身を含む): 327003264

約数和(自身を除く): 165774476

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 81101, 162202, 324404, 567707, 1135414, 2270828, 5758171, 11516342, 23032684, 40307197, 80614394, 161228788]

約数ペア:

[(1, 161228788), (2, 80614394), (4, 40307197), (7, 23032684), (14, 11516342), (28, 5758171), (71, 2270828), (142, 1135414), (284, 567707), (497, 324404), (994, 162202), (1988, 81101)]