155755880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{556271}}^1$

素因数の和:556289

約数の個数: 32

約数和(自身を含む): 400515840

約数和(自身を除く): 244759960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 556271, 1112542, 2225084, 2781355, 3893897, 4450168, 5562710, 7787794, 11125420, 15575588, 19469485, 22250840, 31151176, 38938970, 77877940, 155755880]

約数ペア:

[(1, 155755880), (2, 77877940), (4, 38938970), (5, 31151176), (7, 22250840), (8, 19469485), (10, 15575588), (14, 11125420), (20, 7787794), (28, 5562710), (35, 4450168), (40, 3893897), (56, 2781355), (70, 2225084), (140, 1112542), (280, 556271)]