20188775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{709}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 26940240

約数和(自身を除く): 6751465

約数列:

[1, 5, 17, 25, 67, 85, 335, 425, 709, 1139, 1675, 3545, 5695, 12053, 17725, 28475, 47503, 60265, 237515, 301325, 807551, 1187575, 4037755, 20188775]

約数ペア:

[(1, 20188775), (5, 4037755), (17, 1187575), (25, 807551), (67, 301325), (85, 237515), (335, 60265), (425, 47503), (709, 28475), (1139, 17725), (1675, 12053), (3545, 5695)]