28040840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{10463}}^1$

素因数の和:10541

約数の個数: 32

約数和(自身を含む): 64039680

約数和(自身を除く): 35998840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 10463, 20926, 41852, 52315, 83704, 104630, 209260, 418520, 701021, 1402042, 2804084, 3505105, 5608168, 7010210, 14020420, 28040840]

約数ペア:

[(1, 28040840), (2, 14020420), (4, 7010210), (5, 5608168), (8, 3505105), (10, 2804084), (20, 1402042), (40, 701021), (67, 418520), (134, 209260), (268, 104630), (335, 83704), (536, 52315), (670, 41852), (1340, 20926), (2680, 10463)]