20129131720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21879491}}^1$

素因数の和:21879525

約数の個数: 32

約数和(自身を含む): 47259702720

約数和(自身を除く): 27130571000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21879491, 43758982, 87517964, 109397455, 175035928, 218794910, 437589820, 503228293, 875179640, 1006456586, 2012913172, 2516141465, 4025826344, 5032282930, 10064565860, 20129131720]

約数ペア:

[(1, 20129131720), (2, 10064565860), (4, 5032282930), (5, 4025826344), (8, 2516141465), (10, 2012913172), (20, 1006456586), (23, 875179640), (40, 503228293), (46, 437589820), (92, 218794910), (115, 175035928), (184, 109397455), (230, 87517964), (460, 43758982), (920, 21879491)]