20804505470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1217}}^1\times {\mathrm{2371}}^1$

素因数の和:3705

約数の個数: 64

約数和(自身を含む): 43267101696

約数和(自身を除く): 22462596226

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 103, 206, 515, 721, 1030, 1217, 1442, 2371, 2434, 3605, 4742, 6085, 7210, 8519, 11855, 12170, 16597, 17038, 23710, 33194, 42595, 82985, 85190, 125351, 165970, 244213, 250702, 488426, 626755, 877457, 1221065, 1253510, 1709491, 1754914, 2442130, 2885507, 3418982, 4387285, 5771014, 8547455, 8774570, 14427535, 17094910, 20198549, 28855070, 40397098, 100992745, 201985490, 297207221, 594414442, 1486036105, 2080450547, 2972072210, 4160901094, 10402252735, 20804505470]

約数ペア:

[(1, 20804505470), (2, 10402252735), (5, 4160901094), (7, 2972072210), (10, 2080450547), (14, 1486036105), (35, 594414442), (70, 297207221), (103, 201985490), (206, 100992745), (515, 40397098), (721, 28855070), (1030, 20198549), (1217, 17094910), (1442, 14427535), (2371, 8774570), (2434, 8547455), (3605, 5771014), (4742, 4387285), (6085, 3418982), (7210, 2885507), (8519, 2442130), (11855, 1754914), (12170, 1709491), (16597, 1253510), (17038, 1221065), (23710, 877457), (33194, 626755), (42595, 488426), (82985, 250702), (85190, 244213), (125351, 165970)]