20417015

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1013}}^1$

素因数の和:1186

約数の個数: 16

約数和(自身を含む): 25552800

約数和(自身を除く): 5135785

約数列:

[1, 5, 29, 139, 145, 695, 1013, 4031, 5065, 20155, 29377, 140807, 146885, 704035, 4083403, 20417015]

約数ペア:

[(1, 20417015), (5, 4083403), (29, 704035), (139, 146885), (145, 140807), (695, 29377), (1013, 20155), (4031, 5065)]