1720590949

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1217}}^1$

素因数の和:1346

約数の個数: 48

約数和(自身を含む): 2272729536

約数和(自身を除く): 552138587

約数列:

[1, 7, 11, 43, 49, 61, 77, 301, 427, 473, 539, 671, 1217, 2107, 2623, 2989, 3311, 4697, 8519, 13387, 18361, 23177, 28853, 32879, 52331, 59633, 74237, 93709, 128527, 201971, 366317, 519659, 575641, 655963, 816607, 1413797, 2564219, 3192191, 3637613, 4029487, 5716249, 22345337, 28206409, 35114101, 40013743, 156417359, 245798707, 1720590949]

約数ペア:

[(1, 1720590949), (7, 245798707), (11, 156417359), (43, 40013743), (49, 35114101), (61, 28206409), (77, 22345337), (301, 5716249), (427, 4029487), (473, 3637613), (539, 3192191), (671, 2564219), (1217, 1413797), (2107, 816607), (2623, 655963), (2989, 575641), (3311, 519659), (4697, 366317), (8519, 201971), (13387, 128527), (18361, 93709), (23177, 74237), (28853, 59633), (32879, 52331)]