199982740

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1\times {\mathrm{503}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 427085568

約数和(自身を除く): 227102828

約数列:

[1, 2, 4, 5, 10, 20, 103, 193, 206, 386, 412, 503, 515, 772, 965, 1006, 1030, 1930, 2012, 2060, 2515, 3860, 5030, 10060, 19879, 39758, 51809, 79516, 97079, 99395, 103618, 194158, 198790, 207236, 259045, 388316, 397580, 485395, 518090, 970790, 1036180, 1941580, 9999137, 19998274, 39996548, 49995685, 99991370, 199982740]

約数ペア:

[(1, 199982740), (2, 99991370), (4, 49995685), (5, 39996548), (10, 19998274), (20, 9999137), (103, 1941580), (193, 1036180), (206, 970790), (386, 518090), (412, 485395), (503, 397580), (515, 388316), (772, 259045), (965, 207236), (1006, 198790), (1030, 194158), (1930, 103618), (2012, 99395), (2060, 97079), (2515, 79516), (3860, 51809), (5030, 39758), (10060, 19879)]