1239098020

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{154501}}^1$

素因数の和:154911

約数の個数: 24

約数和(自身を含む): 2608611768

約数和(自身を除く): 1369513748

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 154501, 309002, 618004, 772505, 1545010, 3090020, 61954901, 123909802, 247819604, 309774505, 619549010, 1239098020]

約数ペア:

[(1, 1239098020), (2, 619549010), (4, 309774505), (5, 247819604), (10, 123909802), (20, 61954901), (401, 3090020), (802, 1545010), (1604, 772505), (2005, 618004), (4010, 309002), (8020, 154501)]