243588040

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{17449}}^1$

素因数の和:17809

約数の個数: 32

約数和(自身を含む): 549675000

約数和(自身を除く): 306086960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 13960, 17449, 34898, 69796, 87245, 139592, 174490, 348980, 697960, 6089701, 12179402, 24358804, 30448505, 48717608, 60897010, 121794020, 243588040]

約数ペア:

[(1, 243588040), (2, 121794020), (4, 60897010), (5, 48717608), (8, 30448505), (10, 24358804), (20, 12179402), (40, 6089701), (349, 697960), (698, 348980), (1396, 174490), (1745, 139592), (2792, 87245), (3490, 69796), (6980, 34898), (13960, 17449)]