20107428

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 35050332

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 23, 33, 37, 44, 46, 66, 69, 74, 92, 111, 132, 138, 148, 179, 222, 253, 276, 358, 407, 444, 506, 537, 716, 759, 814, 851, 1012, 1074, 1221, 1518, 1628, 1702, 1969, 2148, 2442, 2553, 3036, 3404, 3938, 4117, 4884, 5106, 5907, 6623, 7876, 8234, 9361, 10212, 11814, 12351, 13246, 16468, 18722, 19869, 23628, 24702, 26492, 28083, 37444, 39738, 45287, 49404, 56166, 72853, 79476, 90574, 112332, 135861, 145706, 152329, 181148, 218559, 271722, 291412, 304658, 437118, 456987, 543444, 609316, 874236, 913974, 1675619, 1827948, 3351238, 5026857, 6702476, 10053714, 20107428]

約数ペア:

[(1, 20107428), (2, 10053714), (3, 6702476), (4, 5026857), (6, 3351238), (11, 1827948), (12, 1675619), (22, 913974), (23, 874236), (33, 609316), (37, 543444), (44, 456987), (46, 437118), (66, 304658), (69, 291412), (74, 271722), (92, 218559), (111, 181148), (132, 152329), (138, 145706), (148, 135861), (179, 112332), (222, 90574), (253, 79476), (276, 72853), (358, 56166), (407, 49404), (444, 45287), (506, 39738), (537, 37444), (716, 28083), (759, 26492), (814, 24702), (851, 23628), (1012, 19869), (1074, 18722), (1221, 16468), (1518, 13246), (1628, 12351), (1702, 11814), (1969, 10212), (2148, 9361), (2442, 8234), (2553, 7876), (3036, 6623), (3404, 5907), (3938, 5106), (4117, 4884)]