249188240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{444979}}^1$

素因数の和:444999

約数の個数: 40

約数和(自身を含む): 662130240

約数和(自身を除く): 412942000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 444979, 889958, 1779916, 2224895, 3114853, 3559832, 4449790, 6229706, 7119664, 8899580, 12459412, 15574265, 17799160, 24918824, 31148530, 35598320, 49837648, 62297060, 124594120, 249188240]

約数ペア:

[(1, 249188240), (2, 124594120), (4, 62297060), (5, 49837648), (7, 35598320), (8, 31148530), (10, 24918824), (14, 17799160), (16, 15574265), (20, 12459412), (28, 8899580), (35, 7119664), (40, 6229706), (56, 4449790), (70, 3559832), (80, 3114853), (112, 2224895), (140, 1779916), (280, 889958), (560, 444979)]