200520825

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{641}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 343269696

約数和(自身を除く): 142748871

約数列:

[1, 3, 5, 15, 25, 43, 75, 97, 129, 215, 291, 485, 641, 645, 1075, 1455, 1923, 2425, 3205, 3225, 4171, 7275, 9615, 12513, 16025, 20855, 27563, 48075, 62177, 62565, 82689, 104275, 137815, 186531, 310885, 312825, 413445, 689075, 932655, 1554425, 2067225, 2673611, 4663275, 8020833, 13368055, 40104165, 66840275, 200520825]

約数ペア:

[(1, 200520825), (3, 66840275), (5, 40104165), (15, 13368055), (25, 8020833), (43, 4663275), (75, 2673611), (97, 2067225), (129, 1554425), (215, 932655), (291, 689075), (485, 413445), (641, 312825), (645, 310885), (1075, 186531), (1455, 137815), (1923, 104275), (2425, 82689), (3205, 62565), (3225, 62177), (4171, 48075), (7275, 27563), (9615, 20855), (12513, 16025)]