440328920

素因数分解:

$2^3\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{9001}}^1$

素因数の和:10235

約数の個数: 32

約数和(自身を含む): 991660320

約数和(自身を除く): 551331400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1223, 2446, 4892, 6115, 9001, 9784, 12230, 18002, 24460, 36004, 45005, 48920, 72008, 90010, 180020, 360040, 11008223, 22016446, 44032892, 55041115, 88065784, 110082230, 220164460, 440328920]

約数ペア:

[(1, 440328920), (2, 220164460), (4, 110082230), (5, 88065784), (8, 55041115), (10, 44032892), (20, 22016446), (40, 11008223), (1223, 360040), (2446, 180020), (4892, 90010), (6115, 72008), (9001, 48920), (9784, 45005), (12230, 36004), (18002, 24460)]