278340218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{2341}}^1$

素因数の和:2642

約数の個数: 32

約数和(自身を含む): 478049040

約数和(自身を除く): 199708822

約数列:

[1, 2, 13, 17, 26, 34, 221, 269, 442, 538, 2341, 3497, 4573, 4682, 6994, 9146, 30433, 39797, 59449, 60866, 79594, 118898, 517361, 629729, 1034722, 1259458, 8186477, 10705393, 16372954, 21410786, 139170109, 278340218]

約数ペア:

[(1, 278340218), (2, 139170109), (13, 21410786), (17, 16372954), (26, 10705393), (34, 8186477), (221, 1259458), (269, 1034722), (442, 629729), (538, 517361), (2341, 118898), (3497, 79594), (4573, 60866), (4682, 59449), (6994, 39797), (9146, 30433)]