81705156

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{3823}}^1$

素因数の和:3980

約数の個数: 48

約数和(自身を含む): 206863104

約数和(自身を除く): 125157948

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 137, 156, 274, 411, 548, 822, 1644, 1781, 3562, 3823, 5343, 7124, 7646, 10686, 11469, 15292, 21372, 22938, 45876, 49699, 99398, 149097, 198796, 298194, 523751, 596388, 1047502, 1571253, 2095004, 3142506, 6285012, 6808763, 13617526, 20426289, 27235052, 40852578, 81705156]

約数ペア:

[(1, 81705156), (2, 40852578), (3, 27235052), (4, 20426289), (6, 13617526), (12, 6808763), (13, 6285012), (26, 3142506), (39, 2095004), (52, 1571253), (78, 1047502), (137, 596388), (156, 523751), (274, 298194), (411, 198796), (548, 149097), (822, 99398), (1644, 49699), (1781, 45876), (3562, 22938), (3823, 21372), (5343, 15292), (7124, 11469), (7646, 10686)]