2108980828075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6317}}^1\times {\mathrm{17099}}^1$

素因数の和:23508

約数の個数: 48

約数和(自身を含む): 2893684435200

約数和(自身を除く): 784703607125

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 1775, 3905, 6317, 17099, 19525, 31585, 69487, 85495, 157925, 188089, 347435, 427475, 448507, 940445, 1214029, 1737175, 2242535, 4702225, 4933577, 6070145, 11212675, 13354319, 24667885, 30350725, 66771595, 108014383, 123339425, 333857975, 540071915, 1188158213, 2700359575, 5940791065, 7669021193, 29703955325, 38345105965, 84359233123, 191725529825, 421796165615, 2108980828075]

約数ペア:

[(1, 2108980828075), (5, 421796165615), (11, 191725529825), (25, 84359233123), (55, 38345105965), (71, 29703955325), (275, 7669021193), (355, 5940791065), (781, 2700359575), (1775, 1188158213), (3905, 540071915), (6317, 333857975), (17099, 123339425), (19525, 108014383), (31585, 66771595), (69487, 30350725), (85495, 24667885), (157925, 13354319), (188089, 11212675), (347435, 6070145), (427475, 4933577), (448507, 4702225), (940445, 2242535), (1214029, 1737175)]