80387870

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{383}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 147087360

約数和(自身を除く): 66699490

約数列:

[1, 2, 5, 10, 139, 151, 278, 302, 383, 695, 755, 766, 1390, 1510, 1915, 3830, 20989, 41978, 53237, 57833, 104945, 106474, 115666, 209890, 266185, 289165, 532370, 578330, 8038787, 16077574, 40193935, 80387870]

約数ペア:

[(1, 80387870), (2, 40193935), (5, 16077574), (10, 8038787), (139, 578330), (151, 532370), (278, 289165), (302, 266185), (383, 209890), (695, 115666), (755, 106474), (766, 104945), (1390, 57833), (1510, 53237), (1915, 41978), (3830, 20989)]