2905840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{5189}}^1$

素因数の和:5209

約数の個数: 40

約数和(自身を含む): 7722720

約数和(自身を除く): 4816880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 5189, 10378, 20756, 25945, 36323, 41512, 51890, 72646, 83024, 103780, 145292, 181615, 207560, 290584, 363230, 415120, 581168, 726460, 1452920, 2905840]

約数ペア:

[(1, 2905840), (2, 1452920), (4, 726460), (5, 581168), (7, 415120), (8, 363230), (10, 290584), (14, 207560), (16, 181615), (20, 145292), (28, 103780), (35, 83024), (40, 72646), (56, 51890), (70, 41512), (80, 36323), (112, 25945), (140, 20756), (280, 10378), (560, 5189)]