8041540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 18394992

約数和(自身を除く): 10353452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 197, 260, 314, 394, 628, 785, 788, 985, 1570, 1970, 2041, 2561, 3140, 3940, 4082, 5122, 8164, 10205, 10244, 12805, 20410, 25610, 30929, 40820, 51220, 61858, 123716, 154645, 309290, 402077, 618580, 804154, 1608308, 2010385, 4020770, 8041540]

約数ペア:

[(1, 8041540), (2, 4020770), (4, 2010385), (5, 1608308), (10, 804154), (13, 618580), (20, 402077), (26, 309290), (52, 154645), (65, 123716), (130, 61858), (157, 51220), (197, 40820), (260, 30929), (314, 25610), (394, 20410), (628, 12805), (785, 10244), (788, 10205), (985, 8164), (1570, 5122), (1970, 4082), (2041, 3940), (2561, 3140)]