78878512

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{114649}}^1$

素因数の和:114700

約数の個数: 20

約数和(自身を含む): 156382600

約数和(自身を除く): 77504088

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 114649, 229298, 458596, 917192, 1834384, 4929907, 9859814, 19719628, 39439256, 78878512]

約数ペア:

[(1, 78878512), (2, 39439256), (4, 19719628), (8, 9859814), (16, 4929907), (43, 1834384), (86, 917192), (172, 458596), (344, 229298), (688, 114649)]