20128238

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 48

約数和(自身を含む): 36049536

約数和(自身を除く): 15921298

約数列:

[1, 2, 13, 17, 26, 31, 34, 62, 113, 169, 221, 226, 338, 403, 442, 527, 806, 1054, 1469, 1921, 2873, 2938, 3503, 3842, 5239, 5746, 6851, 7006, 10478, 13702, 19097, 24973, 38194, 45539, 49946, 59551, 89063, 91078, 119102, 178126, 324649, 592007, 649298, 774163, 1184014, 1548326, 10064119, 20128238]

約数ペア:

[(1, 20128238), (2, 10064119), (13, 1548326), (17, 1184014), (26, 774163), (31, 649298), (34, 592007), (62, 324649), (113, 178126), (169, 119102), (221, 91078), (226, 89063), (338, 59551), (403, 49946), (442, 45539), (527, 38194), (806, 24973), (1054, 19097), (1469, 13702), (1921, 10478), (2873, 7006), (2938, 6851), (3503, 5746), (3842, 5239)]