20199071060

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2944471}}^1$

素因数の和:2944501

約数の個数: 48

約数和(自身を含む): 49467129600

約数和(自身を除く): 29268058540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 2944471, 5888942, 11777884, 14722355, 20611297, 29444710, 41222594, 58889420, 82445188, 103056485, 144279079, 206112970, 288558158, 412225940, 577116316, 721395395, 1009953553, 1442790790, 2019907106, 2885581580, 4039814212, 5049767765, 10099535530, 20199071060]

約数ペア:

[(1, 20199071060), (2, 10099535530), (4, 5049767765), (5, 4039814212), (7, 2885581580), (10, 2019907106), (14, 1442790790), (20, 1009953553), (28, 721395395), (35, 577116316), (49, 412225940), (70, 288558158), (98, 206112970), (140, 144279079), (196, 103056485), (245, 82445188), (343, 58889420), (490, 41222594), (686, 29444710), (980, 20611297), (1372, 14722355), (1715, 11777884), (3430, 5888942), (6860, 2944471)]