638528065

素因数分解:

$5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{10141}}^1$

素因数の和:10417

約数の個数: 24

約数和(自身を含む): 894889512

約数和(自身を除く): 256361447

約数列:

[1, 5, 7, 35, 49, 245, 257, 1285, 1799, 8995, 10141, 12593, 50705, 62965, 70987, 354935, 496909, 2484545, 2606237, 13031185, 18243659, 91218295, 127705613, 638528065]

約数ペア:

[(1, 638528065), (5, 127705613), (7, 91218295), (35, 18243659), (49, 13031185), (245, 2606237), (257, 2484545), (1285, 496909), (1799, 354935), (8995, 70987), (10141, 62965), (12593, 50705)]