154420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1103}}^1$

素因数の和:1119

約数の個数: 24

約数和(自身を含む): 370944

約数和(自身を除く): 216524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1103, 2206, 4412, 5515, 7721, 11030, 15442, 22060, 30884, 38605, 77210, 154420]

約数ペア:

[(1, 154420), (2, 77210), (4, 38605), (5, 30884), (7, 22060), (10, 15442), (14, 11030), (20, 7721), (28, 5515), (35, 4412), (70, 2206), (140, 1103)]