12740720

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2377}}^1$

素因数の和:2457

約数の個数: 40

約数和(自身を含む): 30076944

約数和(自身を除く): 17336224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2377, 2680, 4754, 5360, 9508, 11885, 19016, 23770, 38032, 47540, 95080, 159259, 190160, 318518, 637036, 796295, 1274072, 1592590, 2548144, 3185180, 6370360, 12740720]

約数ペア:

[(1, 12740720), (2, 6370360), (4, 3185180), (5, 2548144), (8, 1592590), (10, 1274072), (16, 796295), (20, 637036), (40, 318518), (67, 190160), (80, 159259), (134, 95080), (268, 47540), (335, 38032), (536, 23770), (670, 19016), (1072, 11885), (1340, 9508), (2377, 5360), (2680, 4754)]