420091450

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{77081}}^1$

素因数の和:77202

約数の個数: 24

約数和(自身を含む): 788548860

約数和(自身を除く): 368457410

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 5450, 77081, 154162, 385405, 770810, 1927025, 3854050, 8401829, 16803658, 42009145, 84018290, 210045725, 420091450]

約数ペア:

[(1, 420091450), (2, 210045725), (5, 84018290), (10, 42009145), (25, 16803658), (50, 8401829), (109, 3854050), (218, 1927025), (545, 770810), (1090, 385405), (2725, 154162), (5450, 77081)]