20795710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{461}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 40515552

約数和(自身を除く): 19719842

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 347, 461, 694, 922, 1735, 2305, 3470, 4511, 4610, 5993, 9022, 11986, 22555, 29965, 45110, 59930, 159967, 319934, 799835, 1599670, 2079571, 4159142, 10397855, 20795710]

約数ペア:

[(1, 20795710), (2, 10397855), (5, 4159142), (10, 2079571), (13, 1599670), (26, 799835), (65, 319934), (130, 159967), (347, 59930), (461, 45110), (694, 29965), (922, 22555), (1735, 11986), (2305, 9022), (3470, 5993), (4511, 4610)]