1638896380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{111187}}^1$

素因数の和:111274

約数の個数: 48

約数和(自身を含む): 3810635136

約数和(自身を除く): 2171738756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 2948, 3685, 7370, 14740, 111187, 222374, 444748, 555935, 1111870, 1223057, 2223740, 2446114, 4892228, 6115285, 7449529, 12230570, 14899058, 24461140, 29798116, 37247645, 74495290, 81944819, 148990580, 163889638, 327779276, 409724095, 819448190, 1638896380]

約数ペア:

[(1, 1638896380), (2, 819448190), (4, 409724095), (5, 327779276), (10, 163889638), (11, 148990580), (20, 81944819), (22, 74495290), (44, 37247645), (55, 29798116), (67, 24461140), (110, 14899058), (134, 12230570), (220, 7449529), (268, 6115285), (335, 4892228), (670, 2446114), (737, 2223740), (1340, 1223057), (1474, 1111870), (2948, 555935), (3685, 444748), (7370, 222374), (14740, 111187)]