28708820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205063}}^1$

素因数の和:205079

約数の個数: 24

約数和(自身を含む): 68901504

約数和(自身を除く): 40192684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205063, 410126, 820252, 1025315, 1435441, 2050630, 2870882, 4101260, 5741764, 7177205, 14354410, 28708820]

約数ペア:

[(1, 28708820), (2, 14354410), (4, 7177205), (5, 5741764), (7, 4101260), (10, 2870882), (14, 2050630), (20, 1435441), (28, 1025315), (35, 820252), (70, 410126), (140, 205063)]