122878840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{438853}}^1$

素因数の和:438871

約数の個数: 32

約数和(自身を含む): 315974880

約数和(自身を除く): 193096040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 438853, 877706, 1755412, 2194265, 3071971, 3510824, 4388530, 6143942, 8777060, 12287884, 15359855, 17554120, 24575768, 30719710, 61439420, 122878840]

約数ペア:

[(1, 122878840), (2, 61439420), (4, 30719710), (5, 24575768), (7, 17554120), (8, 15359855), (10, 12287884), (14, 8777060), (20, 6143942), (28, 4388530), (35, 3510824), (40, 3071971), (56, 2194265), (70, 1755412), (140, 877706), (280, 438853)]