20287501910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{279173}}^1$

素因数の和:279249

約数の個数: 48

約数和(自身を含む): 40462362864

約数和(自身を除く): 20174860954

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 169, 215, 338, 430, 559, 845, 1118, 1690, 2795, 5590, 7267, 14534, 36335, 72670, 279173, 558346, 1395865, 2791730, 3629249, 7258498, 12004439, 18146245, 24008878, 36292490, 47180237, 60022195, 94360474, 120044390, 156057707, 235901185, 312115414, 471802370, 780288535, 1560577070, 2028750191, 4057500382, 10143750955, 20287501910]

約数ペア:

[(1, 20287501910), (2, 10143750955), (5, 4057500382), (10, 2028750191), (13, 1560577070), (26, 780288535), (43, 471802370), (65, 312115414), (86, 235901185), (130, 156057707), (169, 120044390), (215, 94360474), (338, 60022195), (430, 47180237), (559, 36292490), (845, 24008878), (1118, 18146245), (1690, 12004439), (2795, 7258498), (5590, 3629249), (7267, 2791730), (14534, 1395865), (36335, 558346), (72670, 279173)]