156779720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{91151}}^1$

素因数の和:91205

約数の個数: 32

約数和(自身を含む): 360961920

約数和(自身を除く): 204182200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 91151, 182302, 364604, 455755, 729208, 911510, 1823020, 3646040, 3919493, 7838986, 15677972, 19597465, 31355944, 39194930, 78389860, 156779720]

約数ペア:

[(1, 156779720), (2, 78389860), (4, 39194930), (5, 31355944), (8, 19597465), (10, 15677972), (20, 7838986), (40, 3919493), (43, 3646040), (86, 1823020), (172, 911510), (215, 729208), (344, 455755), (430, 364604), (860, 182302), (1720, 91151)]