20348744

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 23680696

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 47, 52, 92, 94, 104, 181, 184, 188, 299, 362, 376, 598, 611, 724, 1081, 1196, 1222, 1448, 2162, 2353, 2392, 2444, 4163, 4324, 4706, 4888, 8326, 8507, 8648, 9412, 14053, 16652, 17014, 18824, 28106, 33304, 34028, 54119, 56212, 68056, 108238, 110591, 112424, 195661, 216476, 221182, 391322, 432952, 442364, 782644, 884728, 1565288, 2543593, 5087186, 10174372, 20348744]

約数ペア:

[(1, 20348744), (2, 10174372), (4, 5087186), (8, 2543593), (13, 1565288), (23, 884728), (26, 782644), (46, 442364), (47, 432952), (52, 391322), (92, 221182), (94, 216476), (104, 195661), (181, 112424), (184, 110591), (188, 108238), (299, 68056), (362, 56212), (376, 54119), (598, 34028), (611, 33304), (724, 28106), (1081, 18824), (1196, 17014), (1222, 16652), (1448, 14053), (2162, 9412), (2353, 8648), (2392, 8507), (2444, 8326), (4163, 4888), (4324, 4706)]