85219880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{811}}^1$

素因数の和:930

約数の個数: 64

約数和(自身を含む): 199946880

約数和(自身を除く): 114727000

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 74, 142, 148, 185, 284, 296, 355, 370, 568, 710, 740, 811, 1420, 1480, 1622, 2627, 2840, 3244, 4055, 5254, 6488, 8110, 10508, 13135, 16220, 21016, 26270, 30007, 32440, 52540, 57581, 60014, 105080, 115162, 120028, 150035, 230324, 240056, 287905, 300070, 460648, 575810, 600140, 1151620, 1200280, 2130497, 2303240, 4260994, 8521988, 10652485, 17043976, 21304970, 42609940, 85219880]

約数ペア:

[(1, 85219880), (2, 42609940), (4, 21304970), (5, 17043976), (8, 10652485), (10, 8521988), (20, 4260994), (37, 2303240), (40, 2130497), (71, 1200280), (74, 1151620), (142, 600140), (148, 575810), (185, 460648), (284, 300070), (296, 287905), (355, 240056), (370, 230324), (568, 150035), (710, 120028), (740, 115162), (811, 105080), (1420, 60014), (1480, 57581), (1622, 52540), (2627, 32440), (2840, 30007), (3244, 26270), (4055, 21016), (5254, 16220), (6488, 13135), (8110, 10508)]