147904520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{85991}}^1$

素因数の和:86045

約数の個数: 32

約数和(自身を含む): 340528320

約数和(自身を除く): 192623800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 85991, 171982, 343964, 429955, 687928, 859910, 1719820, 3439640, 3697613, 7395226, 14790452, 18488065, 29580904, 36976130, 73952260, 147904520]

約数ペア:

[(1, 147904520), (2, 73952260), (4, 36976130), (5, 29580904), (8, 18488065), (10, 14790452), (20, 7395226), (40, 3697613), (43, 3439640), (86, 1719820), (172, 859910), (215, 687928), (344, 429955), (430, 343964), (860, 171982), (1720, 85991)]