20085940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2707}}^1$

素因数の和:2776

約数の個数: 48

約数和(自身を含む): 49133952

約数和(自身を除く): 29048012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2707, 3710, 5414, 7420, 10828, 13535, 18949, 27070, 37898, 54140, 75796, 94745, 143471, 189490, 286942, 378980, 573884, 717355, 1004297, 1434710, 2008594, 2869420, 4017188, 5021485, 10042970, 20085940]

約数ペア:

[(1, 20085940), (2, 10042970), (4, 5021485), (5, 4017188), (7, 2869420), (10, 2008594), (14, 1434710), (20, 1004297), (28, 717355), (35, 573884), (53, 378980), (70, 286942), (106, 189490), (140, 143471), (212, 94745), (265, 75796), (371, 54140), (530, 37898), (742, 27070), (1060, 18949), (1484, 13535), (1855, 10828), (2707, 7420), (3710, 5414)]