128538245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{75389}}^1$

素因数の和:75436

約数の個数: 16

約数和(自身を含む): 173698560

約数和(自身を除く): 45160315

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 75389, 376945, 829279, 2337059, 4146395, 11685295, 25707649, 128538245]

約数ペア:

[(1, 128538245), (5, 25707649), (11, 11685295), (31, 4146395), (55, 2337059), (155, 829279), (341, 376945), (1705, 75389)]