209016620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1\times {\mathrm{503}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 447068160

約数和(自身を除く): 238051540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 263, 316, 395, 503, 526, 790, 1006, 1052, 1315, 1580, 2012, 2515, 2630, 5030, 5260, 10060, 20777, 39737, 41554, 79474, 83108, 103885, 132289, 158948, 198685, 207770, 264578, 397370, 415540, 529156, 661445, 794740, 1322890, 2645780, 10450831, 20901662, 41803324, 52254155, 104508310, 209016620]

約数ペア:

[(1, 209016620), (2, 104508310), (4, 52254155), (5, 41803324), (10, 20901662), (20, 10450831), (79, 2645780), (158, 1322890), (263, 794740), (316, 661445), (395, 529156), (503, 415540), (526, 397370), (790, 264578), (1006, 207770), (1052, 198685), (1315, 158948), (1580, 132289), (2012, 103885), (2515, 83108), (2630, 79474), (5030, 41554), (5260, 39737), (10060, 20777)]