20756940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{757}}^1$

素因数の和:1226

約数の個数: 48

約数和(自身を含む): 58323552

約数和(自身を除く): 37566612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 457, 757, 914, 1371, 1514, 1828, 2271, 2285, 2742, 3028, 3785, 4542, 4570, 5484, 6855, 7570, 9084, 9140, 11355, 13710, 15140, 22710, 27420, 45420, 345949, 691898, 1037847, 1383796, 1729745, 2075694, 3459490, 4151388, 5189235, 6918980, 10378470, 20756940]

約数ペア:

[(1, 20756940), (2, 10378470), (3, 6918980), (4, 5189235), (5, 4151388), (6, 3459490), (10, 2075694), (12, 1729745), (15, 1383796), (20, 1037847), (30, 691898), (60, 345949), (457, 45420), (757, 27420), (914, 22710), (1371, 15140), (1514, 13710), (1828, 11355), (2271, 9140), (2285, 9084), (2742, 7570), (3028, 6855), (3785, 5484), (4542, 4570)]