123721105

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{19843}}^1$

素因数の和:19920

約数の個数: 16

約数和(自身を含む): 157164480

約数和(自身を除く): 33443375

約数列:

[1, 5, 29, 43, 145, 215, 1247, 6235, 19843, 99215, 575447, 853249, 2877235, 4266245, 24744221, 123721105]

約数ペア:

[(1, 123721105), (5, 24744221), (29, 4266245), (43, 2877235), (145, 853249), (215, 575447), (1247, 99215), (6235, 19843)]