20485070

素因数分解:

$2^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{7789}}^1$

素因数の和:8059

約数の個数: 16

約数和(自身を含む): 37018080

約数和(自身を除く): 16533010

約数列:

[1, 2, 5, 10, 263, 526, 1315, 2630, 7789, 15578, 38945, 77890, 2048507, 4097014, 10242535, 20485070]

約数ペア:

[(1, 20485070), (2, 10242535), (5, 4097014), (10, 2048507), (263, 77890), (526, 38945), (1315, 15578), (2630, 7789)]