28145780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1051}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 64331904

約数和(自身を除く): 36186124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 1030, 1051, 1339, 2060, 2102, 2678, 4204, 5255, 5356, 6695, 10510, 13390, 13663, 21020, 26780, 27326, 54652, 68315, 108253, 136630, 216506, 273260, 433012, 541265, 1082530, 1407289, 2165060, 2814578, 5629156, 7036445, 14072890, 28145780]

約数ペア:

[(1, 28145780), (2, 14072890), (4, 7036445), (5, 5629156), (10, 2814578), (13, 2165060), (20, 1407289), (26, 1082530), (52, 541265), (65, 433012), (103, 273260), (130, 216506), (206, 136630), (260, 108253), (412, 68315), (515, 54652), (1030, 27326), (1051, 26780), (1339, 21020), (2060, 13663), (2102, 13390), (2678, 10510), (4204, 6695), (5255, 5356)]