279969280

素因数分解:

$2^9\times 5^1\times {\mathrm{109363}}^1$

素因数の和:109386

約数の個数: 40

約数和(自身を含む): 671276232

約数和(自身を除く): 391306952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 109363, 218726, 437452, 546815, 874904, 1093630, 1749808, 2187260, 3499616, 4374520, 6999232, 8749040, 13998464, 17498080, 27996928, 34996160, 55993856, 69992320, 139984640, 279969280]

約数ペア:

[(1, 279969280), (2, 139984640), (4, 69992320), (5, 55993856), (8, 34996160), (10, 27996928), (16, 17498080), (20, 13998464), (32, 8749040), (40, 6999232), (64, 4374520), (80, 3499616), (128, 2187260), (160, 1749808), (256, 1093630), (320, 874904), (512, 546815), (640, 437452), (1280, 218726), (2560, 109363)]