19779704

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 25839496

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 79, 119, 136, 158, 238, 263, 316, 476, 526, 553, 632, 952, 1052, 1106, 1343, 1841, 2104, 2212, 2686, 3682, 4424, 4471, 5372, 7364, 8942, 9401, 10744, 14728, 17884, 18802, 20777, 31297, 35768, 37604, 41554, 62594, 75208, 83108, 125188, 145439, 166216, 250376, 290878, 353209, 581756, 706418, 1163512, 1412836, 2472463, 2825672, 4944926, 9889852, 19779704]

約数ペア:

[(1, 19779704), (2, 9889852), (4, 4944926), (7, 2825672), (8, 2472463), (14, 1412836), (17, 1163512), (28, 706418), (34, 581756), (56, 353209), (68, 290878), (79, 250376), (119, 166216), (136, 145439), (158, 125188), (238, 83108), (263, 75208), (316, 62594), (476, 41554), (526, 37604), (553, 35768), (632, 31297), (952, 20777), (1052, 18802), (1106, 17884), (1343, 14728), (1841, 10744), (2104, 9401), (2212, 8942), (2686, 7364), (3682, 5372), (4424, 4471)]