138840790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{66431}}^1$

素因数の和:66468

約数の個数: 32

約数和(自身を含む): 286986240

約数和(自身を除く): 148145450

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 66431, 132862, 332155, 664310, 730741, 1262189, 1461482, 2524378, 3653705, 6310945, 7307410, 12621890, 13884079, 27768158, 69420395, 138840790]

約数ペア:

[(1, 138840790), (2, 69420395), (5, 27768158), (10, 13884079), (11, 12621890), (19, 7307410), (22, 6310945), (38, 3653705), (55, 2524378), (95, 1461482), (110, 1262189), (190, 730741), (209, 664310), (418, 332155), (1045, 132862), (2090, 66431)]