28723390

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{28439}}^1$

素因数の和:28547

約数の個数: 16

約数和(自身を含む): 52215840

約数和(自身を除く): 23492450

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 28439, 56878, 142195, 284390, 2872339, 5744678, 14361695, 28723390]

約数ペア:

[(1, 28723390), (2, 14361695), (5, 5744678), (10, 2872339), (101, 284390), (202, 142195), (505, 56878), (1010, 28439)]