7215880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{25771}}^1$

素因数の和:25789

約数の個数: 32

約数和(自身を含む): 18555840

約数和(自身を除く): 11339960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 25771, 51542, 103084, 128855, 180397, 206168, 257710, 360794, 515420, 721588, 901985, 1030840, 1443176, 1803970, 3607940, 7215880]

約数ペア:

[(1, 7215880), (2, 3607940), (4, 1803970), (5, 1443176), (7, 1030840), (8, 901985), (10, 721588), (14, 515420), (20, 360794), (28, 257710), (35, 206168), (40, 180397), (56, 128855), (70, 103084), (140, 51542), (280, 25771)]