20008425640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71458663}}^1$

素因数の和:71458681

約数の個数: 32

約数和(自身を含む): 51450238080

約数和(自身を除く): 31441812440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71458663, 142917326, 285834652, 357293315, 500210641, 571669304, 714586630, 1000421282, 1429173260, 2000842564, 2501053205, 2858346520, 4001685128, 5002106410, 10004212820, 20008425640]

約数ペア:

[(1, 20008425640), (2, 10004212820), (4, 5002106410), (5, 4001685128), (7, 2858346520), (8, 2501053205), (10, 2000842564), (14, 1429173260), (20, 1000421282), (28, 714586630), (35, 571669304), (40, 500210641), (56, 357293315), (70, 285834652), (140, 142917326), (280, 71458663)]