81372840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:459

約数の個数: 128

約数和(自身を含む): 257040000

約数和(自身を除く): 175667160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 67, 87, 116, 120, 134, 145, 174, 201, 232, 268, 290, 335, 348, 349, 402, 435, 536, 580, 670, 696, 698, 804, 870, 1005, 1047, 1160, 1340, 1396, 1608, 1740, 1745, 1943, 2010, 2094, 2680, 2792, 3480, 3490, 3886, 4020, 4188, 5235, 5829, 6980, 7772, 8040, 8376, 9715, 10121, 10470, 11658, 13960, 15544, 19430, 20242, 20940, 23316, 23383, 29145, 30363, 38860, 40484, 41880, 46632, 46766, 50605, 58290, 60726, 70149, 77720, 80968, 93532, 101210, 116580, 116915, 121452, 140298, 151815, 187064, 202420, 233160, 233830, 242904, 280596, 303630, 350745, 404840, 467660, 561192, 607260, 678107, 701490, 935320, 1214520, 1356214, 1402980, 2034321, 2712428, 2805960, 3390535, 4068642, 5424856, 6781070, 8137284, 10171605, 13562140, 16274568, 20343210, 27124280, 40686420, 81372840]

約数ペア:

[(1, 81372840), (2, 40686420), (3, 27124280), (4, 20343210), (5, 16274568), (6, 13562140), (8, 10171605), (10, 8137284), (12, 6781070), (15, 5424856), (20, 4068642), (24, 3390535), (29, 2805960), (30, 2712428), (40, 2034321), (58, 1402980), (60, 1356214), (67, 1214520), (87, 935320), (116, 701490), (120, 678107), (134, 607260), (145, 561192), (174, 467660), (201, 404840), (232, 350745), (268, 303630), (290, 280596), (335, 242904), (348, 233830), (349, 233160), (402, 202420), (435, 187064), (536, 151815), (580, 140298), (670, 121452), (696, 116915), (698, 116580), (804, 101210), (870, 93532), (1005, 80968), (1047, 77720), (1160, 70149), (1340, 60726), (1396, 58290), (1608, 50605), (1740, 46766), (1745, 46632), (1943, 41880), (2010, 40484), (2094, 38860), (2680, 30363), (2792, 29145), (3480, 23383), (3490, 23316), (3886, 20940), (4020, 20242), (4188, 19430), (5235, 15544), (5829, 13960), (6980, 11658), (7772, 10470), (8040, 10121), (8376, 9715)]