20129421625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{21383}}^1$

素因数の和:21858

約数の個数: 32

約数和(自身を含む): 26660544768

約数和(自身を除く): 6531123143

約数列:

[1, 5, 17, 25, 85, 125, 425, 443, 2125, 2215, 7531, 11075, 21383, 37655, 55375, 106915, 188275, 363511, 534575, 941375, 1817555, 2672875, 9087775, 9472669, 45438875, 47363345, 161035373, 236816725, 805176865, 1184083625, 4025884325, 20129421625]

約数ペア:

[(1, 20129421625), (5, 4025884325), (17, 1184083625), (25, 805176865), (85, 236816725), (125, 161035373), (425, 47363345), (443, 45438875), (2125, 9472669), (2215, 9087775), (7531, 2672875), (11075, 1817555), (21383, 941375), (37655, 534575), (55375, 363511), (106915, 188275)]