127976720

素因数分解:

$2^4\times 5^1\times {\mathrm{1599709}}^1$

素因数の和:1599722

約数の個数: 20

約数和(自身を含む): 297546060

約数和(自身を除く): 169569340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1599709, 3199418, 6398836, 7998545, 12797672, 15997090, 25595344, 31994180, 63988360, 127976720]

約数ペア:

[(1, 127976720), (2, 63988360), (4, 31994180), (5, 25595344), (8, 15997090), (10, 12797672), (16, 7998545), (20, 6398836), (40, 3199418), (80, 1599709)]