20309828

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 47996928

約数和(自身を除く): 27687100

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 47, 61, 77, 92, 94, 122, 154, 161, 188, 244, 253, 308, 322, 329, 427, 506, 517, 644, 658, 671, 854, 1012, 1034, 1081, 1316, 1342, 1403, 1708, 1771, 2068, 2162, 2684, 2806, 2867, 3542, 3619, 4324, 4697, 5612, 5734, 7084, 7238, 7567, 9394, 9821, 11468, 11891, 14476, 15134, 15433, 18788, 19642, 20069, 23782, 30268, 30866, 31537, 39284, 40138, 47564, 61732, 63074, 65941, 80276, 83237, 108031, 126148, 131882, 166474, 216062, 220759, 263764, 332948, 432124, 441518, 461587, 725351, 883036, 923174, 1450702, 1846348, 2901404, 5077457, 10154914, 20309828]

約数ペア:

[(1, 20309828), (2, 10154914), (4, 5077457), (7, 2901404), (11, 1846348), (14, 1450702), (22, 923174), (23, 883036), (28, 725351), (44, 461587), (46, 441518), (47, 432124), (61, 332948), (77, 263764), (92, 220759), (94, 216062), (122, 166474), (154, 131882), (161, 126148), (188, 108031), (244, 83237), (253, 80276), (308, 65941), (322, 63074), (329, 61732), (427, 47564), (506, 40138), (517, 39284), (644, 31537), (658, 30866), (671, 30268), (854, 23782), (1012, 20069), (1034, 19642), (1081, 18788), (1316, 15433), (1342, 15134), (1403, 14476), (1708, 11891), (1771, 11468), (2068, 9821), (2162, 9394), (2684, 7567), (2806, 7238), (2867, 7084), (3542, 5734), (3619, 5612), (4324, 4697)]