20888970040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3757009}}^1$

素因数の和:3757159

約数の個数: 32

約数和(自身を含む): 47338326000

約数和(自身を除く): 26449355960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 3757009, 7514018, 15028036, 18785045, 30056072, 37570090, 75140180, 150280360, 522224251, 1044448502, 2088897004, 2611121255, 4177794008, 5222242510, 10444485020, 20888970040]

約数ペア:

[(1, 20888970040), (2, 10444485020), (4, 5222242510), (5, 4177794008), (8, 2611121255), (10, 2088897004), (20, 1044448502), (40, 522224251), (139, 150280360), (278, 75140180), (556, 37570090), (695, 30056072), (1112, 18785045), (1390, 15028036), (2780, 7514018), (5560, 3757009)]