28004330

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{20147}}^1$

素因数の和:20293

約数の個数: 16

約数和(自身を含む): 50772960

約数和(自身を除く): 22768630

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 20147, 40294, 100735, 201470, 2800433, 5600866, 14002165, 28004330]

約数ペア:

[(1, 28004330), (2, 14002165), (5, 5600866), (10, 2800433), (139, 201470), (278, 100735), (695, 40294), (1390, 20147)]