278031236690

素因数分解:

$2^1\times 5^1\times {\mathrm{21323}}^1\times {\mathrm{1303903}}^1$

素因数の和:1325233

約数の個数: 16

約数和(自身を含む): 500480080128

約数和(自身を除く): 222448843438

約数列:

[1, 2, 5, 10, 21323, 42646, 106615, 213230, 1303903, 2607806, 6519515, 13039030, 27803123669, 55606247338, 139015618345, 278031236690]

約数ペア:

[(1, 278031236690), (2, 139015618345), (5, 55606247338), (10, 27803123669), (21323, 13039030), (42646, 6519515), (106615, 2607806), (213230, 1303903)]