28374705

素因数分解:

$3^4\times 5^1\times {\mathrm{70061}}^1$

素因数の和:70078

約数の個数: 20

約数和(自身を含む): 50865012

約数和(自身を除く): 22490307

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70061, 210183, 350305, 630549, 1050915, 1891647, 3152745, 5674941, 9458235, 28374705]

約数ペア:

[(1, 28374705), (3, 9458235), (5, 5674941), (9, 3152745), (15, 1891647), (27, 1050915), (45, 630549), (81, 350305), (135, 210183), (405, 70061)]