28189278

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{673}}^1$

素因数の和:873

約数の個数: 48

約数和(自身を含む): 66240720

約数和(自身を除く): 38051442

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 179, 234, 358, 537, 673, 1074, 1346, 1611, 2019, 2327, 3222, 4038, 4654, 6057, 6981, 8749, 12114, 13962, 17498, 20943, 26247, 41886, 52494, 78741, 120467, 157482, 240934, 361401, 722802, 1084203, 1566071, 2168406, 3132142, 4698213, 9396426, 14094639, 28189278]

約数ペア:

[(1, 28189278), (2, 14094639), (3, 9396426), (6, 4698213), (9, 3132142), (13, 2168406), (18, 1566071), (26, 1084203), (39, 722802), (78, 361401), (117, 240934), (179, 157482), (234, 120467), (358, 78741), (537, 52494), (673, 41886), (1074, 26247), (1346, 20943), (1611, 17498), (2019, 13962), (2327, 12114), (3222, 8749), (4038, 6981), (4654, 6057)]