20163786620

素因数分解:

$2^2\times 5^1\times {\mathrm{743}}^1\times {\mathrm{997}}^1\times {\mathrm{1361}}^1$

素因数の和:3110

約数の個数: 48

約数和(自身を含む): 42474656448

約数和(自身を除く): 22310869828

約数列:

[1, 2, 4, 5, 10, 20, 743, 997, 1361, 1486, 1994, 2722, 2972, 3715, 3988, 4985, 5444, 6805, 7430, 9970, 13610, 14860, 19940, 27220, 740771, 1011223, 1356917, 1481542, 2022446, 2713834, 2963084, 3703855, 4044892, 5056115, 5427668, 6784585, 7407710, 10112230, 13569170, 14815420, 20224460, 27138340, 1008189331, 2016378662, 4032757324, 5040946655, 10081893310, 20163786620]

約数ペア:

[(1, 20163786620), (2, 10081893310), (4, 5040946655), (5, 4032757324), (10, 2016378662), (20, 1008189331), (743, 27138340), (997, 20224460), (1361, 14815420), (1486, 13569170), (1994, 10112230), (2722, 7407710), (2972, 6784585), (3715, 5427668), (3988, 5056115), (4985, 4044892), (5444, 3703855), (6805, 2963084), (7430, 2713834), (9970, 2022446), (13610, 1481542), (14860, 1356917), (19940, 1011223), (27220, 740771)]