20050415

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2741}}^1$

素因数の和:2783

約数の個数: 32

約数和(自身を含む): 31587840

約数和(自身を除く): 11537425

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 2741, 7315, 13705, 19187, 30151, 52079, 95935, 150755, 211057, 260395, 364553, 572869, 1055285, 1822765, 2864345, 4010083, 20050415]

約数ペア:

[(1, 20050415), (5, 4010083), (7, 2864345), (11, 1822765), (19, 1055285), (35, 572869), (55, 364553), (77, 260395), (95, 211057), (133, 150755), (209, 95935), (385, 52079), (665, 30151), (1045, 19187), (1463, 13705), (2741, 7315)]