80664920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288089}}^1$

素因数の和:288107

約数の個数: 32

約数和(自身を含む): 207424800

約数和(自身を除く): 126759880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288089, 576178, 1152356, 1440445, 2016623, 2304712, 2880890, 4033246, 5761780, 8066492, 10083115, 11523560, 16132984, 20166230, 40332460, 80664920]

約数ペア:

[(1, 80664920), (2, 40332460), (4, 20166230), (5, 16132984), (7, 11523560), (8, 10083115), (10, 8066492), (14, 5761780), (20, 4033246), (28, 2880890), (35, 2304712), (40, 2016623), (56, 1440445), (70, 1152356), (140, 576178), (280, 288089)]