128520807

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{461}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 185982720

約数和(自身を除く): 57461913

約数列:

[1, 3, 19, 57, 67, 73, 201, 219, 461, 1273, 1383, 1387, 3819, 4161, 4891, 8759, 14673, 26277, 30887, 33653, 92661, 92929, 100959, 278787, 586853, 639407, 1760559, 1918221, 2254751, 6764253, 42840269, 128520807]

約数ペア:

[(1, 128520807), (3, 42840269), (19, 6764253), (57, 2254751), (67, 1918221), (73, 1760559), (201, 639407), (219, 586853), (461, 278787), (1273, 100959), (1383, 92929), (1387, 92661), (3819, 33653), (4161, 30887), (4891, 26277), (8759, 14673)]