388679960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{3733}}^1$

素因数の和:3900

約数の個数: 64

約数和(自身を含む): 927525600

約数和(自身を除く): 538845640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 137, 152, 190, 274, 380, 548, 685, 760, 1096, 1370, 2603, 2740, 3733, 5206, 5480, 7466, 10412, 13015, 14932, 18665, 20824, 26030, 29864, 37330, 52060, 70927, 74660, 104120, 141854, 149320, 283708, 354635, 511421, 567416, 709270, 1022842, 1418540, 2045684, 2557105, 2837080, 4091368, 5114210, 9716999, 10228420, 19433998, 20456840, 38867996, 48584995, 77735992, 97169990, 194339980, 388679960]

約数ペア:

[(1, 388679960), (2, 194339980), (4, 97169990), (5, 77735992), (8, 48584995), (10, 38867996), (19, 20456840), (20, 19433998), (38, 10228420), (40, 9716999), (76, 5114210), (95, 4091368), (137, 2837080), (152, 2557105), (190, 2045684), (274, 1418540), (380, 1022842), (548, 709270), (685, 567416), (760, 511421), (1096, 354635), (1370, 283708), (2603, 149320), (2740, 141854), (3733, 104120), (5206, 74660), (5480, 70927), (7466, 52060), (10412, 37330), (13015, 29864), (14932, 26030), (18665, 20824)]