100861520

素因数分解:

$2^4\times 5^1\times {\mathrm{1260769}}^1$

素因数の和:1260782

約数の個数: 20

約数和(自身を含む): 234503220

約数和(自身を除く): 133641700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1260769, 2521538, 5043076, 6303845, 10086152, 12607690, 20172304, 25215380, 50430760, 100861520]

約数ペア:

[(1, 100861520), (2, 50430760), (4, 25215380), (5, 20172304), (8, 12607690), (10, 10086152), (16, 6303845), (20, 5043076), (40, 2521538), (80, 1260769)]