20187457900

素因数分解:

$2^2\times 5^2\times {\mathrm{977}}^1\times {\mathrm{206627}}^1$

素因数の和:207618

約数の個数: 36

約数和(自身を含む): 43851833928

約数和(自身を除く): 23664376028

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 977, 1954, 3908, 4885, 9770, 19540, 24425, 48850, 97700, 206627, 413254, 826508, 1033135, 2066270, 4132540, 5165675, 10331350, 20662700, 201874579, 403749158, 807498316, 1009372895, 2018745790, 4037491580, 5046864475, 10093728950, 20187457900]

約数ペア:

[(1, 20187457900), (2, 10093728950), (4, 5046864475), (5, 4037491580), (10, 2018745790), (20, 1009372895), (25, 807498316), (50, 403749158), (100, 201874579), (977, 20662700), (1954, 10331350), (3908, 5165675), (4885, 4132540), (9770, 2066270), (19540, 1033135), (24425, 826508), (48850, 413254), (97700, 206627)]