20895980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149257}}^1$

素因数の和:149273

約数の個数: 24

約数和(自身を含む): 50150688

約数和(自身を除く): 29254708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149257, 298514, 597028, 746285, 1044799, 1492570, 2089598, 2985140, 4179196, 5223995, 10447990, 20895980]

約数ペア:

[(1, 20895980), (2, 10447990), (4, 5223995), (5, 4179196), (7, 2985140), (10, 2089598), (14, 1492570), (20, 1044799), (28, 746285), (35, 597028), (70, 298514), (140, 149257)]