20005552

素因数分解:

$2^4\times 7^1\times {\mathrm{178621}}^1$

素因数の和:178636

約数の個数: 20

約数和(自身を含む): 44298256

約数和(自身を除く): 24292704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178621, 357242, 714484, 1250347, 1428968, 2500694, 2857936, 5001388, 10002776, 20005552]

約数ペア:

[(1, 20005552), (2, 10002776), (4, 5001388), (7, 2857936), (8, 2500694), (14, 1428968), (16, 1250347), (28, 714484), (56, 357242), (112, 178621)]