20904200

素因数分解:

$2^3\times 5^2\times {\mathrm{127}}^1\times {\mathrm{823}}^1$

素因数の和:966

約数の個数: 48

約数和(自身を含む): 49044480

約数和(自身を除く): 28140280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 127, 200, 254, 508, 635, 823, 1016, 1270, 1646, 2540, 3175, 3292, 4115, 5080, 6350, 6584, 8230, 12700, 16460, 20575, 25400, 32920, 41150, 82300, 104521, 164600, 209042, 418084, 522605, 836168, 1045210, 2090420, 2613025, 4180840, 5226050, 10452100, 20904200]

約数ペア:

[(1, 20904200), (2, 10452100), (4, 5226050), (5, 4180840), (8, 2613025), (10, 2090420), (20, 1045210), (25, 836168), (40, 522605), (50, 418084), (100, 209042), (127, 164600), (200, 104521), (254, 82300), (508, 41150), (635, 32920), (823, 25400), (1016, 20575), (1270, 16460), (1646, 12700), (2540, 8230), (3175, 6584), (3292, 6350), (4115, 5080)]