20059644680

素因数分解:

$2^3\times 5^1\times {\mathrm{501491117}}^1$

素因数の和:501491128

約数の個数: 16

約数和(自身を含む): 45134200620

約数和(自身を除く): 25074555940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 501491117, 1002982234, 2005964468, 2507455585, 4011928936, 5014911170, 10029822340, 20059644680]

約数ペア:

[(1, 20059644680), (2, 10029822340), (4, 5014911170), (5, 4011928936), (8, 2507455585), (10, 2005964468), (20, 1002982234), (40, 501491117)]