28884440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55547}}^1$

素因数の和:55571

約数の個数: 32

約数和(自身を含む): 69990480

約数和(自身を除く): 41106040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55547, 111094, 222188, 277735, 444376, 555470, 722111, 1110940, 1444222, 2221880, 2888444, 3610555, 5776888, 7221110, 14442220, 28884440]

約数ペア:

[(1, 28884440), (2, 14442220), (4, 7221110), (5, 5776888), (8, 3610555), (10, 2888444), (13, 2221880), (20, 1444222), (26, 1110940), (40, 722111), (52, 555470), (65, 444376), (104, 277735), (130, 222188), (260, 111094), (520, 55547)]