247988185

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1\times {\mathrm{4139}}^1$

素因数の和:4688

約数の個数: 16

約数和(自身を含む): 311195520

約数和(自身を除く): 63207335

約数列:

[1, 5, 23, 115, 521, 2605, 4139, 11983, 20695, 59915, 95197, 475985, 2156419, 10782095, 49597637, 247988185]

約数ペア:

[(1, 247988185), (5, 49597637), (23, 10782095), (115, 2156419), (521, 475985), (2605, 95197), (4139, 59915), (11983, 20695)]