291352240

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{8221}}^1$

素因数の和:8677

約数の個数: 40

約数和(自身を含む): 679005648

約数和(自身を除く): 387653408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 886, 1772, 2215, 3544, 4430, 7088, 8221, 8860, 16442, 17720, 32884, 35440, 41105, 65768, 82210, 131536, 164420, 328840, 657680, 3641903, 7283806, 14567612, 18209515, 29135224, 36419030, 58270448, 72838060, 145676120, 291352240]

約数ペア:

[(1, 291352240), (2, 145676120), (4, 72838060), (5, 58270448), (8, 36419030), (10, 29135224), (16, 18209515), (20, 14567612), (40, 7283806), (80, 3641903), (443, 657680), (886, 328840), (1772, 164420), (2215, 131536), (3544, 82210), (4430, 65768), (7088, 41105), (8221, 35440), (8860, 32884), (16442, 17720)]