20165708

素因数分解:

$2^2\times {\mathrm{157}}^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 35914032

約数和(自身を除く): 15748324

約数列:

[1, 2, 4, 157, 163, 197, 314, 326, 394, 628, 652, 788, 25591, 30929, 32111, 51182, 61858, 64222, 102364, 123716, 128444, 5041427, 10082854, 20165708]

約数ペア:

[(1, 20165708), (2, 10082854), (4, 5041427), (157, 128444), (163, 123716), (197, 102364), (314, 64222), (326, 61858), (394, 51182), (628, 32111), (652, 30929), (788, 25591)]