13004920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7561}}^1$

素因数の和:7615

約数の個数: 32

約数和(自身を含む): 29945520

約数和(自身を除く): 16940600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7561, 15122, 30244, 37805, 60488, 75610, 151220, 302440, 325123, 650246, 1300492, 1625615, 2600984, 3251230, 6502460, 13004920]

約数ペア:

[(1, 13004920), (2, 6502460), (4, 3251230), (5, 2600984), (8, 1625615), (10, 1300492), (20, 650246), (40, 325123), (43, 302440), (86, 151220), (172, 75610), (215, 60488), (344, 37805), (430, 30244), (860, 15122), (1720, 7561)]