217468520

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{19211}}^1$

素因数の和:19505

約数の個数: 32

約数和(自身を含む): 491058720

約数和(自身を除く): 273590200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 19211, 38422, 76844, 96055, 153688, 192110, 384220, 768440, 5436713, 10873426, 21746852, 27183565, 43493704, 54367130, 108734260, 217468520]

約数ペア:

[(1, 217468520), (2, 108734260), (4, 54367130), (5, 43493704), (8, 27183565), (10, 21746852), (20, 10873426), (40, 5436713), (283, 768440), (566, 384220), (1132, 192110), (1415, 153688), (2264, 96055), (2830, 76844), (5660, 38422), (11320, 19211)]