990017950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{40163}}^1$

素因数の和:40221

約数の個数: 48

約数和(自身を含む): 2017036080

約数和(自身を除く): 1027018130

約数列:

[1, 2, 5, 10, 17, 25, 29, 34, 50, 58, 85, 145, 170, 290, 425, 493, 725, 850, 986, 1450, 2465, 4930, 12325, 24650, 40163, 80326, 200815, 401630, 682771, 1004075, 1164727, 1365542, 2008150, 2329454, 3413855, 5823635, 6827710, 11647270, 17069275, 19800359, 29118175, 34138550, 39600718, 58236350, 99001795, 198003590, 495008975, 990017950]

約数ペア:

[(1, 990017950), (2, 495008975), (5, 198003590), (10, 99001795), (17, 58236350), (25, 39600718), (29, 34138550), (34, 29118175), (50, 19800359), (58, 17069275), (85, 11647270), (145, 6827710), (170, 5823635), (290, 3413855), (425, 2329454), (493, 2008150), (725, 1365542), (850, 1164727), (986, 1004075), (1450, 682771), (2465, 401630), (4930, 200815), (12325, 80326), (24650, 40163)]