319348520

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{28211}}^1$

素因数の和:28505

約数の個数: 32

約数和(自身を含む): 721098720

約数和(自身を除く): 401750200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 28211, 56422, 112844, 141055, 225688, 282110, 564220, 1128440, 7983713, 15967426, 31934852, 39918565, 63869704, 79837130, 159674260, 319348520]

約数ペア:

[(1, 319348520), (2, 159674260), (4, 79837130), (5, 63869704), (8, 39918565), (10, 31934852), (20, 15967426), (40, 7983713), (283, 1128440), (566, 564220), (1132, 282110), (1415, 225688), (2264, 141055), (2830, 112844), (5660, 56422), (11320, 28211)]