15739720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9151}}^1$

素因数の和:9205

約数の個数: 32

約数和(自身を含む): 36241920

約数和(自身を除く): 20502200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9151, 18302, 36604, 45755, 73208, 91510, 183020, 366040, 393493, 786986, 1573972, 1967465, 3147944, 3934930, 7869860, 15739720]

約数ペア:

[(1, 15739720), (2, 7869860), (4, 3934930), (5, 3147944), (8, 1967465), (10, 1573972), (20, 786986), (40, 393493), (43, 366040), (86, 183020), (172, 91510), (215, 73208), (344, 45755), (430, 36604), (860, 18302), (1720, 9151)]