210866975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 298775520

約数和(自身を除く): 87908545

約数列:

[1, 5, 11, 25, 29, 55, 137, 145, 193, 275, 319, 685, 725, 965, 1507, 1595, 2123, 3425, 3973, 4825, 5597, 7535, 7975, 10615, 19865, 26441, 27985, 37675, 43703, 53075, 61567, 99325, 132205, 139925, 218515, 290851, 307835, 661025, 766789, 1092575, 1454255, 1539175, 3833945, 7271275, 8434679, 19169725, 42173395, 210866975]

約数ペア:

[(1, 210866975), (5, 42173395), (11, 19169725), (25, 8434679), (29, 7271275), (55, 3833945), (137, 1539175), (145, 1454255), (193, 1092575), (275, 766789), (319, 661025), (685, 307835), (725, 290851), (965, 218515), (1507, 139925), (1595, 132205), (2123, 99325), (3425, 61567), (3973, 53075), (4825, 43703), (5597, 37675), (7535, 27985), (7975, 26441), (10615, 19865)]