253126510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{21397}}^1$

素因数の和:21437

約数の個数: 48

約数和(自身を含む): 563880096

約数和(自身を除く): 310753586

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 169, 182, 338, 455, 845, 910, 1183, 1690, 2366, 5915, 11830, 21397, 42794, 106985, 149779, 213970, 278161, 299558, 556322, 748895, 1390805, 1497790, 1947127, 2781610, 3616093, 3894254, 7232186, 9735635, 18080465, 19471270, 25312651, 36160930, 50625302, 126563255, 253126510]

約数ペア:

[(1, 253126510), (2, 126563255), (5, 50625302), (7, 36160930), (10, 25312651), (13, 19471270), (14, 18080465), (26, 9735635), (35, 7232186), (65, 3894254), (70, 3616093), (91, 2781610), (130, 1947127), (169, 1497790), (182, 1390805), (338, 748895), (455, 556322), (845, 299558), (910, 278161), (1183, 213970), (1690, 149779), (2366, 106985), (5915, 42794), (11830, 21397)]