207927640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1997}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 496303200

約数和(自身を除く): 288375560

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, 1997, 2603, 2740, 3994, 5206, 5480, 7988, 9985, 10412, 13015, 15976, 19970, 20824, 26030, 37943, 39940, 52060, 75886, 79880, 104120, 151772, 189715, 273589, 303544, 379430, 547178, 758860, 1094356, 1367945, 1517720, 2188712, 2735890, 5198191, 5471780, 10396382, 10943560, 20792764, 25990955, 41585528, 51981910, 103963820, 207927640]

約数ペア:

[(1, 207927640), (2, 103963820), (4, 51981910), (5, 41585528), (8, 25990955), (10, 20792764), (19, 10943560), (20, 10396382), (38, 5471780), (40, 5198191), (76, 2735890), (95, 2188712), (137, 1517720), (152, 1367945), (190, 1094356), (274, 758860), (380, 547178), (548, 379430), (685, 303544), (760, 273589), (1096, 189715), (1370, 151772), (1997, 104120), (2603, 79880), (2740, 75886), (3994, 52060), (5206, 39940), (5480, 37943), (7988, 26030), (9985, 20824), (10412, 19970), (13015, 15976)]