2509978

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:389

約数の個数: 16

約数和(自身を含む): 3888000

約数和(自身を除く): 1378022

約数列:

[1, 2, 59, 89, 118, 178, 239, 478, 5251, 10502, 14101, 21271, 28202, 42542, 1254989, 2509978]

約数ペア:

[(1, 2509978), (2, 1254989), (59, 42542), (89, 28202), (118, 21271), (178, 14101), (239, 10502), (478, 5251)]