205425857

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1609}}^1$

素因数の和:1713

約数の個数: 32

約数和(自身を含む): 268316160

約数和(自身を除く): 62890303

約数列:

[1, 7, 13, 23, 61, 91, 161, 299, 427, 793, 1403, 1609, 2093, 5551, 9821, 11263, 18239, 20917, 37007, 98149, 127673, 146419, 259049, 481091, 687043, 1275937, 2257427, 3367637, 8931559, 15801989, 29346551, 205425857]

約数ペア:

[(1, 205425857), (7, 29346551), (13, 15801989), (23, 8931559), (61, 3367637), (91, 2257427), (161, 1275937), (299, 687043), (427, 481091), (793, 259049), (1403, 146419), (1609, 127673), (2093, 98149), (5551, 37007), (9821, 20917), (11263, 18239)]