20199402020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2032133}}^1$

素因数の和:2032220

約数の個数: 48

約数和(自身を含む): 49161385728

約数和(自身を除く): 28961983708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 2032133, 4064266, 8128532, 10160665, 14224931, 20321330, 28449862, 40642660, 56899724, 71124655, 142249310, 144281443, 284498620, 288562886, 577125772, 721407215, 1009970101, 1442814430, 2019940202, 2885628860, 4039880404, 5049850505, 10099701010, 20199402020]

約数ペア:

[(1, 20199402020), (2, 10099701010), (4, 5049850505), (5, 4039880404), (7, 2885628860), (10, 2019940202), (14, 1442814430), (20, 1009970101), (28, 721407215), (35, 577125772), (70, 288562886), (71, 284498620), (140, 144281443), (142, 142249310), (284, 71124655), (355, 56899724), (497, 40642660), (710, 28449862), (994, 20321330), (1420, 14224931), (1988, 10160665), (2485, 8128532), (4970, 4064266), (9940, 2032133)]