28300760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6491}}^1$

素因数の和:6611

約数の個数: 32

約数和(自身を含む): 64270800

約数和(自身を除く): 35970040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6491, 12982, 25964, 32455, 51928, 64910, 129820, 259640, 707519, 1415038, 2830076, 3537595, 5660152, 7075190, 14150380, 28300760]

約数ペア:

[(1, 28300760), (2, 14150380), (4, 7075190), (5, 5660152), (8, 3537595), (10, 2830076), (20, 1415038), (40, 707519), (109, 259640), (218, 129820), (436, 64910), (545, 51928), (872, 32455), (1090, 25964), (2180, 12982), (4360, 6491)]