129884020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{927743}}^1$

素因数の和:927759

約数の個数: 24

約数和(自身を含む): 311721984

約数和(自身を除く): 181837964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 927743, 1855486, 3710972, 4638715, 6494201, 9277430, 12988402, 18554860, 25976804, 32471005, 64942010, 129884020]

約数ペア:

[(1, 129884020), (2, 64942010), (4, 32471005), (5, 25976804), (7, 18554860), (10, 12988402), (14, 9277430), (20, 6494201), (28, 4638715), (35, 3710972), (70, 1855486), (140, 927743)]