199752020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{7459}}^1$

素因数の和:7584

約数の個数: 48

約数和(自身を含む): 456193920

約数和(自身を除く): 256441900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 1030, 1339, 2060, 2678, 5356, 6695, 7459, 13390, 14918, 26780, 29836, 37295, 74590, 96967, 149180, 193934, 387868, 484835, 768277, 969670, 1536554, 1939340, 3073108, 3841385, 7682770, 9987601, 15365540, 19975202, 39950404, 49938005, 99876010, 199752020]

約数ペア:

[(1, 199752020), (2, 99876010), (4, 49938005), (5, 39950404), (10, 19975202), (13, 15365540), (20, 9987601), (26, 7682770), (52, 3841385), (65, 3073108), (103, 1939340), (130, 1536554), (206, 969670), (260, 768277), (412, 484835), (515, 387868), (1030, 193934), (1339, 149180), (2060, 96967), (2678, 74590), (5356, 37295), (6695, 29836), (7459, 26780), (13390, 14918)]