13282840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2389}}^1$

素因数の和:2539

約数の個数: 32

約数和(自身を含む): 30114000

約数和(自身を除く): 16831160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2389, 2780, 4778, 5560, 9556, 11945, 19112, 23890, 47780, 95560, 332071, 664142, 1328284, 1660355, 2656568, 3320710, 6641420, 13282840]

約数ペア:

[(1, 13282840), (2, 6641420), (4, 3320710), (5, 2656568), (8, 1660355), (10, 1328284), (20, 664142), (40, 332071), (139, 95560), (278, 47780), (556, 23890), (695, 19112), (1112, 11945), (1390, 9556), (2389, 5560), (2780, 4778)]