1999304860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2040107}}^1$

素因数の和:2040130

約数の個数: 36

約数和(自身を含む): 4884018552

約数和(自身を除く): 2884713692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2040107, 4080214, 8160428, 10200535, 14280749, 20401070, 28561498, 40802140, 57122996, 71403745, 99965243, 142807490, 199930486, 285614980, 399860972, 499826215, 999652430, 1999304860]

約数ペア:

[(1, 1999304860), (2, 999652430), (4, 499826215), (5, 399860972), (7, 285614980), (10, 199930486), (14, 142807490), (20, 99965243), (28, 71403745), (35, 57122996), (49, 40802140), (70, 28561498), (98, 20401070), (140, 14280749), (196, 10200535), (245, 8160428), (490, 4080214), (980, 2040107)]