128336720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{227}}^1$

素因数の和:468

約数の個数: 80

約数和(自身を含む): 309408768

約数和(自身を除く): 181072048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 191, 227, 296, 370, 382, 454, 592, 740, 764, 908, 955, 1135, 1480, 1528, 1816, 1910, 2270, 2960, 3056, 3632, 3820, 4540, 7067, 7640, 8399, 9080, 14134, 15280, 16798, 18160, 28268, 33596, 35335, 41995, 43357, 56536, 67192, 70670, 83990, 86714, 113072, 134384, 141340, 167980, 173428, 216785, 282680, 335960, 346856, 433570, 565360, 671920, 693712, 867140, 1604209, 1734280, 3208418, 3468560, 6416836, 8021045, 12833672, 16042090, 25667344, 32084180, 64168360, 128336720]

約数ペア:

[(1, 128336720), (2, 64168360), (4, 32084180), (5, 25667344), (8, 16042090), (10, 12833672), (16, 8021045), (20, 6416836), (37, 3468560), (40, 3208418), (74, 1734280), (80, 1604209), (148, 867140), (185, 693712), (191, 671920), (227, 565360), (296, 433570), (370, 346856), (382, 335960), (454, 282680), (592, 216785), (740, 173428), (764, 167980), (908, 141340), (955, 134384), (1135, 113072), (1480, 86714), (1528, 83990), (1816, 70670), (1910, 67192), (2270, 56536), (2960, 43357), (3056, 41995), (3632, 35335), (3820, 33596), (4540, 28268), (7067, 18160), (7640, 16798), (8399, 15280), (9080, 14134)]