20120907729

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1\times {\mathrm{761}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 30238403328

約数和(自身を除く): 10117495599

約数列:

[1, 3, 13, 37, 39, 73, 111, 219, 251, 481, 753, 761, 949, 1443, 2283, 2701, 2847, 3263, 8103, 9287, 9789, 9893, 18323, 27861, 28157, 29679, 35113, 54969, 55553, 84471, 105339, 120731, 166659, 191011, 238199, 362193, 366041, 573033, 677951, 714597, 722189, 1098123, 2033853, 2055461, 2166567, 2483143, 6166383, 7067407, 7449429, 8813363, 13943803, 21202221, 26440089, 26720993, 41831409, 80162979, 91876291, 181269439, 275628873, 515920711, 543808317, 1547762133, 6706969243, 20120907729]

約数ペア:

[(1, 20120907729), (3, 6706969243), (13, 1547762133), (37, 543808317), (39, 515920711), (73, 275628873), (111, 181269439), (219, 91876291), (251, 80162979), (481, 41831409), (753, 26720993), (761, 26440089), (949, 21202221), (1443, 13943803), (2283, 8813363), (2701, 7449429), (2847, 7067407), (3263, 6166383), (8103, 2483143), (9287, 2166567), (9789, 2055461), (9893, 2033853), (18323, 1098123), (27861, 722189), (28157, 714597), (29679, 677951), (35113, 573033), (54969, 366041), (55553, 362193), (84471, 238199), (105339, 191011), (120731, 166659)]