20137340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 24769060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 197, 269, 380, 394, 538, 788, 985, 1076, 1345, 1970, 2690, 3743, 3940, 5111, 5380, 7486, 10222, 14972, 18715, 20444, 25555, 37430, 51110, 52993, 74860, 102220, 105986, 211972, 264965, 529930, 1006867, 1059860, 2013734, 4027468, 5034335, 10068670, 20137340]

約数ペア:

[(1, 20137340), (2, 10068670), (4, 5034335), (5, 4027468), (10, 2013734), (19, 1059860), (20, 1006867), (38, 529930), (76, 264965), (95, 211972), (190, 105986), (197, 102220), (269, 74860), (380, 52993), (394, 51110), (538, 37430), (788, 25555), (985, 20444), (1076, 18715), (1345, 14972), (1970, 10222), (2690, 7486), (3743, 5380), (3940, 5111)]