20049970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1999}}^1$

素因数の和:2082

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 18830030

約数列:

[1, 2, 5, 10, 17, 34, 59, 85, 118, 170, 295, 590, 1003, 1999, 2006, 3998, 5015, 9995, 10030, 19990, 33983, 67966, 117941, 169915, 235882, 339830, 589705, 1179410, 2004997, 4009994, 10024985, 20049970]

約数ペア:

[(1, 20049970), (2, 10024985), (5, 4009994), (10, 2004997), (17, 1179410), (34, 589705), (59, 339830), (85, 235882), (118, 169915), (170, 117941), (295, 67966), (590, 33983), (1003, 19990), (1999, 10030), (2006, 9995), (3998, 5015)]