8029720

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1019}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 18176400

約数和(自身を除く): 10146680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1019, 1576, 1970, 2038, 3940, 4076, 5095, 7880, 8152, 10190, 20380, 40760, 200743, 401486, 802972, 1003715, 1605944, 2007430, 4014860, 8029720]

約数ペア:

[(1, 8029720), (2, 4014860), (4, 2007430), (5, 1605944), (8, 1003715), (10, 802972), (20, 401486), (40, 200743), (197, 40760), (394, 20380), (788, 10190), (985, 8152), (1019, 7880), (1576, 5095), (1970, 4076), (2038, 3940)]