8359820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{283}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 20229888

約数和(自身を除く): 11870068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 283, 422, 566, 844, 1055, 1132, 1415, 1477, 1981, 2110, 2830, 2954, 3962, 4220, 5660, 5908, 7385, 7924, 9905, 14770, 19810, 29540, 39620, 59713, 119426, 238852, 298565, 417991, 597130, 835982, 1194260, 1671964, 2089955, 4179910, 8359820]

約数ペア:

[(1, 8359820), (2, 4179910), (4, 2089955), (5, 1671964), (7, 1194260), (10, 835982), (14, 597130), (20, 417991), (28, 298565), (35, 238852), (70, 119426), (140, 59713), (211, 39620), (283, 29540), (422, 19810), (566, 14770), (844, 9905), (1055, 7924), (1132, 7385), (1415, 5908), (1477, 5660), (1981, 4220), (2110, 3962), (2830, 2954)]