221971900520

素因数分解:

$2^3\times 5^1\times {\mathrm{84827}}^1\times {\mathrm{65419}}^1$

素因数の和:150257

約数の個数: 32

約数和(自身を含む): 499450298400

約数和(自身を除く): 277478397880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 65419, 84827, 130838, 169654, 261676, 327095, 339308, 424135, 523352, 654190, 678616, 848270, 1308380, 1696540, 2616760, 3393080, 5549297513, 11098595026, 22197190052, 27746487565, 44394380104, 55492975130, 110985950260, 221971900520]

約数ペア:

[(1, 221971900520), (2, 110985950260), (4, 55492975130), (5, 44394380104), (8, 27746487565), (10, 22197190052), (20, 11098595026), (40, 5549297513), (65419, 3393080), (84827, 2616760), (130838, 1696540), (169654, 1308380), (261676, 848270), (327095, 678616), (339308, 654190), (424135, 523352)]