321752720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{947}}^1$

素因数の和:1128

約数の個数: 80

約数和(自身を含む): 778664448

約数和(自身を除く): 456911728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 137, 155, 248, 274, 310, 496, 548, 620, 685, 947, 1096, 1240, 1370, 1894, 2192, 2480, 2740, 3788, 4247, 4735, 5480, 7576, 8494, 9470, 10960, 15152, 16988, 18940, 21235, 29357, 33976, 37880, 42470, 58714, 67952, 75760, 84940, 117428, 129739, 146785, 169880, 234856, 259478, 293570, 339760, 469712, 518956, 587140, 648695, 1037912, 1174280, 1297390, 2075824, 2348560, 2594780, 4021909, 5189560, 8043818, 10379120, 16087636, 20109545, 32175272, 40219090, 64350544, 80438180, 160876360, 321752720]

約数ペア:

[(1, 321752720), (2, 160876360), (4, 80438180), (5, 64350544), (8, 40219090), (10, 32175272), (16, 20109545), (20, 16087636), (31, 10379120), (40, 8043818), (62, 5189560), (80, 4021909), (124, 2594780), (137, 2348560), (155, 2075824), (248, 1297390), (274, 1174280), (310, 1037912), (496, 648695), (548, 587140), (620, 518956), (685, 469712), (947, 339760), (1096, 293570), (1240, 259478), (1370, 234856), (1894, 169880), (2192, 146785), (2480, 129739), (2740, 117428), (3788, 84940), (4247, 75760), (4735, 67952), (5480, 58714), (7576, 42470), (8494, 37880), (9470, 33976), (10960, 29357), (15152, 21235), (16988, 18940)]