28074865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61703}}^1$

素因数の和:61728

約数の個数: 16

約数和(自身を含む): 41465088

約数和(自身を除く): 13390223

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 61703, 308515, 431921, 802139, 2159605, 4010695, 5614973, 28074865]

約数ペア:

[(1, 28074865), (5, 5614973), (7, 4010695), (13, 2159605), (35, 802139), (65, 431921), (91, 308515), (455, 61703)]