20894240

素因数分解:

$2^5\times 5^1\times {\mathrm{130589}}^1$

素因数の和:130604

約数の個数: 24

約数和(自身を含む): 49363020

約数和(自身を除く): 28468780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 130589, 261178, 522356, 652945, 1044712, 1305890, 2089424, 2611780, 4178848, 5223560, 10447120, 20894240]

約数ペア:

[(1, 20894240), (2, 10447120), (4, 5223560), (5, 4178848), (8, 2611780), (10, 2089424), (16, 1305890), (20, 1044712), (32, 652945), (40, 522356), (80, 261178), (160, 130589)]