81204455

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{4027}}^1$

素因数の和:4178

約数の個数: 16

約数和(自身を含む): 101022240

約数和(自身を除く): 19817785

約数列:

[1, 5, 37, 109, 185, 545, 4027, 4033, 20135, 20165, 148999, 438943, 744995, 2194715, 16240891, 81204455]

約数ペア:

[(1, 81204455), (5, 16240891), (37, 2194715), (109, 744995), (185, 438943), (545, 148999), (4027, 20165), (4033, 20135)]