1320244220

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{499}}^1\times {\mathrm{503}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 2794176000

約数和(自身を除く): 1473931780

約数列:

[1, 2, 4, 5, 10, 20, 263, 499, 503, 526, 998, 1006, 1052, 1315, 1996, 2012, 2495, 2515, 2630, 4990, 5030, 5260, 9980, 10060, 131237, 132289, 250997, 262474, 264578, 501994, 524948, 529156, 656185, 661445, 1003988, 1254985, 1312370, 1322890, 2509970, 2624740, 2645780, 5019940, 66012211, 132024422, 264048844, 330061055, 660122110, 1320244220]

約数ペア:

[(1, 1320244220), (2, 660122110), (4, 330061055), (5, 264048844), (10, 132024422), (20, 66012211), (263, 5019940), (499, 2645780), (503, 2624740), (526, 2509970), (998, 1322890), (1006, 1312370), (1052, 1254985), (1315, 1003988), (1996, 661445), (2012, 656185), (2495, 529156), (2515, 524948), (2630, 501994), (4990, 264578), (5030, 262474), (5260, 250997), (9980, 132289), (10060, 131237)]