28106140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8951}}^1$

素因数の和:9117

約数の個数: 24

約数和(自身を含む): 59405472

約数和(自身を除く): 31299332

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 8951, 17902, 35804, 44755, 89510, 179020, 1405307, 2810614, 5621228, 7026535, 14053070, 28106140]

約数ペア:

[(1, 28106140), (2, 14053070), (4, 7026535), (5, 5621228), (10, 2810614), (20, 1405307), (157, 179020), (314, 89510), (628, 44755), (785, 35804), (1570, 17902), (3140, 8951)]