28861840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{51539}}^1$

素因数の和:51559

約数の個数: 40

約数和(自身を含む): 76691520

約数和(自身を除く): 47829680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 51539, 103078, 206156, 257695, 360773, 412312, 515390, 721546, 824624, 1030780, 1443092, 1803865, 2061560, 2886184, 3607730, 4123120, 5772368, 7215460, 14430920, 28861840]

約数ペア:

[(1, 28861840), (2, 14430920), (4, 7215460), (5, 5772368), (7, 4123120), (8, 3607730), (10, 2886184), (14, 2061560), (16, 1803865), (20, 1443092), (28, 1030780), (35, 824624), (40, 721546), (56, 515390), (70, 412312), (80, 360773), (112, 257695), (140, 206156), (280, 103078), (560, 51539)]