81371280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10937}}^1$

素因数の和:10984

約数の個数: 80

約数和(自身を含む): 260411904

約数和(自身を除く): 179040624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 10937, 21874, 32811, 43748, 54685, 65622, 87496, 109370, 131244, 164055, 174992, 218740, 262488, 328110, 339047, 437480, 524976, 656220, 678094, 874960, 1017141, 1312440, 1356188, 1695235, 2034282, 2624880, 2712376, 3390470, 4068564, 5085705, 5424752, 6780940, 8137128, 10171410, 13561880, 16274256, 20342820, 27123760, 40685640, 81371280]

約数ペア:

[(1, 81371280), (2, 40685640), (3, 27123760), (4, 20342820), (5, 16274256), (6, 13561880), (8, 10171410), (10, 8137128), (12, 6780940), (15, 5424752), (16, 5085705), (20, 4068564), (24, 3390470), (30, 2712376), (31, 2624880), (40, 2034282), (48, 1695235), (60, 1356188), (62, 1312440), (80, 1017141), (93, 874960), (120, 678094), (124, 656220), (155, 524976), (186, 437480), (240, 339047), (248, 328110), (310, 262488), (372, 218740), (465, 174992), (496, 164055), (620, 131244), (744, 109370), (930, 87496), (1240, 65622), (1488, 54685), (1860, 43748), (2480, 32811), (3720, 21874), (7440, 10937)]