2721481980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{9923}}^1$

素因数の和:10595

約数の個数: 96

約数和(自身を含む): 8722957824

約数和(自身を除く): 6001475844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 653, 1306, 1959, 2612, 3265, 3918, 4571, 6530, 7836, 9142, 9795, 9923, 13060, 13713, 18284, 19590, 19846, 22855, 27426, 29769, 39180, 39692, 45710, 49615, 54852, 59538, 68565, 69461, 91420, 99230, 119076, 137130, 138922, 148845, 198460, 208383, 274260, 277844, 297690, 347305, 416766, 595380, 694610, 833532, 1041915, 1389220, 2083830, 4167660, 6479719, 12959438, 19439157, 25918876, 32398595, 38878314, 45358033, 64797190, 77756628, 90716066, 97195785, 129594380, 136074099, 181432132, 194391570, 226790165, 272148198, 388783140, 453580330, 544296396, 680370495, 907160660, 1360740990, 2721481980]

約数ペア:

[(1, 2721481980), (2, 1360740990), (3, 907160660), (4, 680370495), (5, 544296396), (6, 453580330), (7, 388783140), (10, 272148198), (12, 226790165), (14, 194391570), (15, 181432132), (20, 136074099), (21, 129594380), (28, 97195785), (30, 90716066), (35, 77756628), (42, 64797190), (60, 45358033), (70, 38878314), (84, 32398595), (105, 25918876), (140, 19439157), (210, 12959438), (420, 6479719), (653, 4167660), (1306, 2083830), (1959, 1389220), (2612, 1041915), (3265, 833532), (3918, 694610), (4571, 595380), (6530, 416766), (7836, 347305), (9142, 297690), (9795, 277844), (9923, 274260), (13060, 208383), (13713, 198460), (18284, 148845), (19590, 138922), (19846, 137130), (22855, 119076), (27426, 99230), (29769, 91420), (39180, 69461), (39692, 68565), (45710, 59538), (49615, 54852)]