6447220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 14768208

約数和(自身を除く): 8320988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 181, 260, 274, 362, 548, 685, 724, 905, 1370, 1781, 1810, 2353, 2740, 3562, 3620, 4706, 7124, 8905, 9412, 11765, 17810, 23530, 24797, 35620, 47060, 49594, 99188, 123985, 247970, 322361, 495940, 644722, 1289444, 1611805, 3223610, 6447220]

約数ペア:

[(1, 6447220), (2, 3223610), (4, 1611805), (5, 1289444), (10, 644722), (13, 495940), (20, 322361), (26, 247970), (52, 123985), (65, 99188), (130, 49594), (137, 47060), (181, 35620), (260, 24797), (274, 23530), (362, 17810), (548, 11765), (685, 9412), (724, 8905), (905, 7124), (1370, 4706), (1781, 3620), (1810, 3562), (2353, 2740)]