120644020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{861743}}^1$

素因数の和:861759

約数の個数: 24

約数和(自身を含む): 289545984

約数和(自身を除く): 168901964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 861743, 1723486, 3446972, 4308715, 6032201, 8617430, 12064402, 17234860, 24128804, 30161005, 60322010, 120644020]

約数ペア:

[(1, 120644020), (2, 60322010), (4, 30161005), (5, 24128804), (7, 17234860), (10, 12064402), (14, 8617430), (20, 6032201), (28, 4308715), (35, 3446972), (70, 1723486), (140, 861743)]