51366440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31321}}^1$

素因数の和:31373

約数の個数: 32

約数和(自身を含む): 118397160

約数和(自身を除く): 67030720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 31321, 62642, 125284, 156605, 250568, 313210, 626420, 1252840, 1284161, 2568322, 5136644, 6420805, 10273288, 12841610, 25683220, 51366440]

約数ペア:

[(1, 51366440), (2, 25683220), (4, 12841610), (5, 10273288), (8, 6420805), (10, 5136644), (20, 2568322), (40, 1284161), (41, 1252840), (82, 626420), (164, 313210), (205, 250568), (328, 156605), (410, 125284), (820, 62642), (1640, 31321)]