156951280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:602

約数の個数: 80

約数和(自身を含む): 378100800

約数和(自身を除く): 221149520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 109, 164, 205, 218, 328, 410, 436, 439, 545, 656, 820, 872, 878, 1090, 1640, 1744, 1756, 2180, 2195, 3280, 3512, 4360, 4390, 4469, 7024, 8720, 8780, 8938, 17560, 17876, 17999, 22345, 35120, 35752, 35998, 44690, 47851, 71504, 71996, 89380, 89995, 95702, 143992, 178760, 179990, 191404, 239255, 287984, 357520, 359980, 382808, 478510, 719960, 765616, 957020, 1439920, 1914040, 1961891, 3828080, 3923782, 7847564, 9809455, 15695128, 19618910, 31390256, 39237820, 78475640, 156951280]

約数ペア:

[(1, 156951280), (2, 78475640), (4, 39237820), (5, 31390256), (8, 19618910), (10, 15695128), (16, 9809455), (20, 7847564), (40, 3923782), (41, 3828080), (80, 1961891), (82, 1914040), (109, 1439920), (164, 957020), (205, 765616), (218, 719960), (328, 478510), (410, 382808), (436, 359980), (439, 357520), (545, 287984), (656, 239255), (820, 191404), (872, 179990), (878, 178760), (1090, 143992), (1640, 95702), (1744, 89995), (1756, 89380), (2180, 71996), (2195, 71504), (3280, 47851), (3512, 44690), (4360, 35998), (4390, 35752), (4469, 35120), (7024, 22345), (8720, 17999), (8780, 17876), (8938, 17560)]