51402715

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{16139}}^1$

素因数の和:16171

約数の個数: 24

約数和(自身を含む): 77278320

約数和(自身を除く): 25875605

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 16139, 80695, 112973, 209807, 564865, 790811, 1049035, 1468649, 3954055, 7343245, 10280543, 51402715]

約数ペア:

[(1, 51402715), (5, 10280543), (7, 7343245), (13, 3954055), (35, 1468649), (49, 1049035), (65, 790811), (91, 564865), (245, 209807), (455, 112973), (637, 80695), (3185, 16139)]