208839160

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{37561}}^1$

素因数の和:37711

約数の個数: 32

約数和(自身を含む): 473281200

約数和(自身を除く): 264442040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 37561, 75122, 150244, 187805, 300488, 375610, 751220, 1502440, 5220979, 10441958, 20883916, 26104895, 41767832, 52209790, 104419580, 208839160]

約数ペア:

[(1, 208839160), (2, 104419580), (4, 52209790), (5, 41767832), (8, 26104895), (10, 20883916), (20, 10441958), (40, 5220979), (139, 1502440), (278, 751220), (556, 375610), (695, 300488), (1112, 187805), (1390, 150244), (2780, 75122), (5560, 37561)]