138889360

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{3919}}^1$

素因数の和:4375

約数の個数: 40

約数和(自身を含む): 323729280

約数和(自身を除く): 184839920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 886, 1772, 2215, 3544, 3919, 4430, 7088, 7838, 8860, 15676, 17720, 19595, 31352, 35440, 39190, 62704, 78380, 156760, 313520, 1736117, 3472234, 6944468, 8680585, 13888936, 17361170, 27777872, 34722340, 69444680, 138889360]

約数ペア:

[(1, 138889360), (2, 69444680), (4, 34722340), (5, 27777872), (8, 17361170), (10, 13888936), (16, 8680585), (20, 6944468), (40, 3472234), (80, 1736117), (443, 313520), (886, 156760), (1772, 78380), (2215, 62704), (3544, 39190), (3919, 35440), (4430, 31352), (7088, 19595), (7838, 17720), (8860, 15676)]