20155115

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{7649}}^1$

素因数の和:7702

約数の個数: 16

約数和(自身を含む): 26438400

約数和(自身を除く): 6283285

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 7649, 38245, 130033, 237119, 650165, 1185595, 4031023, 20155115]

約数ペア:

[(1, 20155115), (5, 4031023), (17, 1185595), (31, 650165), (85, 237119), (155, 130033), (527, 38245), (2635, 7649)]