20756720

素因数分解:

$2^4\times 5^1\times {\mathrm{259459}}^1$

素因数の和:259472

約数の個数: 20

約数和(自身を含む): 48259560

約数和(自身を除く): 27502840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 259459, 518918, 1037836, 1297295, 2075672, 2594590, 4151344, 5189180, 10378360, 20756720]

約数ペア:

[(1, 20756720), (2, 10378360), (4, 5189180), (5, 4151344), (8, 2594590), (10, 2075672), (16, 1297295), (20, 1037836), (40, 518918), (80, 259459)]