80008240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4049}}^1$

素因数の和:4094

約数の個数: 80

約数和(自身を含む): 210924000

約数和(自身を除く): 130915760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4049, 4940, 8098, 9880, 16196, 19760, 20245, 32392, 40490, 52637, 64784, 76931, 80980, 105274, 153862, 161960, 210548, 263185, 307724, 323920, 384655, 421096, 526370, 615448, 769310, 842192, 1000103, 1052740, 1230896, 1538620, 2000206, 2105480, 3077240, 4000412, 4210960, 5000515, 6154480, 8000824, 10001030, 16001648, 20002060, 40004120, 80008240]

約数ペア:

[(1, 80008240), (2, 40004120), (4, 20002060), (5, 16001648), (8, 10001030), (10, 8000824), (13, 6154480), (16, 5000515), (19, 4210960), (20, 4000412), (26, 3077240), (38, 2105480), (40, 2000206), (52, 1538620), (65, 1230896), (76, 1052740), (80, 1000103), (95, 842192), (104, 769310), (130, 615448), (152, 526370), (190, 421096), (208, 384655), (247, 323920), (260, 307724), (304, 263185), (380, 210548), (494, 161960), (520, 153862), (760, 105274), (988, 80980), (1040, 76931), (1235, 64784), (1520, 52637), (1976, 40490), (2470, 32392), (3952, 20245), (4049, 19760), (4940, 16196), (8098, 9880)]