20187565568

素因数分解:

$2^9\times {\mathrm{41}}^1\times {\mathrm{961679}}^1$

素因数の和:961738

約数の個数: 40

約数和(自身を含む): 41319542880

約数和(自身を除く): 21131977312

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 256, 328, 512, 656, 1312, 2624, 5248, 10496, 20992, 961679, 1923358, 3846716, 7693432, 15386864, 30773728, 39428839, 61547456, 78857678, 123094912, 157715356, 246189824, 315430712, 492379648, 630861424, 1261722848, 2523445696, 5046891392, 10093782784, 20187565568]

約数ペア:

[(1, 20187565568), (2, 10093782784), (4, 5046891392), (8, 2523445696), (16, 1261722848), (32, 630861424), (41, 492379648), (64, 315430712), (82, 246189824), (128, 157715356), (164, 123094912), (256, 78857678), (328, 61547456), (512, 39428839), (656, 30773728), (1312, 15386864), (2624, 7693432), (5248, 3846716), (10496, 1923358), (20992, 961679)]