40004120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4049}}^1$

素因数の和:4092

約数の個数: 64

約数和(自身を含む): 102060000

約数和(自身を除く): 62055880

約数列:

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

約数ペア:

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