139250440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{497323}}^1$

素因数の和:497341

約数の個数: 32

約数和(自身を含む): 358073280

約数和(自身を除く): 218822840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 497323, 994646, 1989292, 2486615, 3481261, 3978584, 4973230, 6962522, 9946460, 13925044, 17406305, 19892920, 27850088, 34812610, 69625220, 139250440]

約数ペア:

[(1, 139250440), (2, 69625220), (4, 34812610), (5, 27850088), (7, 19892920), (8, 17406305), (10, 13925044), (14, 9946460), (20, 6962522), (28, 4973230), (35, 3978584), (40, 3481261), (56, 2486615), (70, 1989292), (140, 994646), (280, 497323)]