20723506048

素因数分解:

$2^7\times 7^1\times {\mathrm{353}}^1\times {\mathrm{65521}}^1$

素因数の和:65895

約数の個数: 64

約数和(自身を含む): 47317367520

約数和(自身を除く): 26593861472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 353, 448, 706, 896, 1412, 2471, 2824, 4942, 5648, 9884, 11296, 19768, 22592, 39536, 45184, 65521, 79072, 131042, 158144, 262084, 316288, 458647, 524168, 917294, 1048336, 1834588, 2096672, 3669176, 4193344, 7338352, 8386688, 14676704, 23128913, 29353408, 46257826, 58706816, 92515652, 161902391, 185031304, 323804782, 370062608, 647609564, 740125216, 1295219128, 1480250432, 2590438256, 2960500864, 5180876512, 10361753024, 20723506048]

約数ペア:

[(1, 20723506048), (2, 10361753024), (4, 5180876512), (7, 2960500864), (8, 2590438256), (14, 1480250432), (16, 1295219128), (28, 740125216), (32, 647609564), (56, 370062608), (64, 323804782), (112, 185031304), (128, 161902391), (224, 92515652), (353, 58706816), (448, 46257826), (706, 29353408), (896, 23128913), (1412, 14676704), (2471, 8386688), (2824, 7338352), (4942, 4193344), (5648, 3669176), (9884, 2096672), (11296, 1834588), (19768, 1048336), (22592, 917294), (39536, 524168), (45184, 458647), (65521, 316288), (79072, 262084), (131042, 158144)]