20135678

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{4111}}^1$

素因数の和:4223

約数の個数: 16

約数和(自身を含む): 31580160

約数和(自身を除く): 11444482

約数列:

[1, 2, 31, 62, 79, 158, 2449, 4111, 4898, 8222, 127441, 254882, 324769, 649538, 10067839, 20135678]

約数ペア:

[(1, 20135678), (2, 10067839), (31, 649538), (62, 324769), (79, 254882), (158, 127441), (2449, 8222), (4111, 4898)]