81219606

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 181621440

約数和(自身を除く): 100401834

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 78, 82, 109, 123, 218, 233, 246, 327, 466, 533, 654, 699, 1066, 1398, 1417, 1599, 2834, 3029, 3198, 4251, 4469, 6058, 8502, 8938, 9087, 9553, 13407, 18174, 19106, 25397, 26814, 28659, 50794, 57318, 58097, 76191, 116194, 124189, 152382, 174291, 248378, 330161, 348582, 372567, 660322, 745134, 990483, 1041277, 1980966, 2082554, 3123831, 6247662, 13536601, 27073202, 40609803, 81219606]

約数ペア:

[(1, 81219606), (2, 40609803), (3, 27073202), (6, 13536601), (13, 6247662), (26, 3123831), (39, 2082554), (41, 1980966), (78, 1041277), (82, 990483), (109, 745134), (123, 660322), (218, 372567), (233, 348582), (246, 330161), (327, 248378), (466, 174291), (533, 152382), (654, 124189), (699, 116194), (1066, 76191), (1398, 58097), (1417, 57318), (1599, 50794), (2834, 28659), (3029, 26814), (3198, 25397), (4251, 19106), (4469, 18174), (6058, 13407), (8502, 9553), (8938, 9087)]