72100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{103}}^1$

素因数の和:124

約数の個数: 36

約数和(自身を含む): 180544

約数和(自身を除く): 108444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 103, 140, 175, 206, 350, 412, 515, 700, 721, 1030, 1442, 2060, 2575, 2884, 3605, 5150, 7210, 10300, 14420, 18025, 36050, 72100]

約数ペア:

[(1, 72100), (2, 36050), (4, 18025), (5, 14420), (7, 10300), (10, 7210), (14, 5150), (20, 3605), (25, 2884), (28, 2575), (35, 2060), (50, 1442), (70, 1030), (100, 721), (103, 700), (140, 515), (175, 412), (206, 350)]