205980860

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{65599}}^1$

素因数の和:65765

約数の個数: 24

約数和(自身を含む): 435321600

約数和(自身を除く): 229340740

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 65599, 131198, 262396, 327995, 655990, 1311980, 10299043, 20598086, 41196172, 51495215, 102990430, 205980860]

約数ペア:

[(1, 205980860), (2, 102990430), (4, 51495215), (5, 41196172), (10, 20598086), (20, 10299043), (157, 1311980), (314, 655990), (628, 327995), (785, 262396), (1570, 131198), (3140, 65599)]