420440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 989280

約数和(自身を除く): 568840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 457, 460, 914, 920, 1828, 2285, 3656, 4570, 9140, 10511, 18280, 21022, 42044, 52555, 84088, 105110, 210220, 420440]

約数ペア:

[(1, 420440), (2, 210220), (4, 105110), (5, 84088), (8, 52555), (10, 42044), (20, 21022), (23, 18280), (40, 10511), (46, 9140), (92, 4570), (115, 3656), (184, 2285), (230, 1828), (457, 920), (460, 914)]