161361220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{278209}}^1$

素因数の和:278247

約数の個数: 24

約数和(自身を含む): 350544600

約数和(自身を除く): 189183380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 278209, 556418, 1112836, 1391045, 2782090, 5564180, 8068061, 16136122, 32272244, 40340305, 80680610, 161361220]

約数ペア:

[(1, 161361220), (2, 80680610), (4, 40340305), (5, 32272244), (10, 16136122), (20, 8068061), (29, 5564180), (58, 2782090), (116, 1391045), (145, 1112836), (290, 556418), (580, 278209)]