20154690430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{290539}}^1$

素因数の和:291544

約数の個数: 32

約数和(自身を含む): 41503057920

約数和(自身を除く): 21348367490

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 991, 1982, 4955, 6937, 9910, 13874, 34685, 69370, 290539, 581078, 1452695, 2033773, 2905390, 4067546, 10168865, 20337730, 287924149, 575848298, 1439620745, 2015469043, 2879241490, 4030938086, 10077345215, 20154690430]

約数ペア:

[(1, 20154690430), (2, 10077345215), (5, 4030938086), (7, 2879241490), (10, 2015469043), (14, 1439620745), (35, 575848298), (70, 287924149), (991, 20337730), (1982, 10168865), (4955, 4067546), (6937, 2905390), (9910, 2033773), (13874, 1452695), (34685, 581078), (69370, 290539)]