12880240

素因数分解:

$2^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{691}}^1$

素因数の和:937

約数の個数: 40

約数和(自身を含む): 30118608

約数和(自身を除く): 17238368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233, 466, 691, 932, 1165, 1382, 1864, 2330, 2764, 3455, 3728, 4660, 5528, 6910, 9320, 11056, 13820, 18640, 27640, 55280, 161003, 322006, 644012, 805015, 1288024, 1610030, 2576048, 3220060, 6440120, 12880240]

約数ペア:

[(1, 12880240), (2, 6440120), (4, 3220060), (5, 2576048), (8, 1610030), (10, 1288024), (16, 805015), (20, 644012), (40, 322006), (80, 161003), (233, 55280), (466, 27640), (691, 18640), (932, 13820), (1165, 11056), (1382, 9320), (1864, 6910), (2330, 5528), (2764, 4660), (3455, 3728)]