20489964

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:455

約数の個数: 96

約数和(自身を含む): 57770496

約数和(自身を除く): 37280532

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 23, 33, 34, 44, 46, 51, 66, 68, 69, 92, 102, 132, 138, 187, 204, 253, 276, 374, 391, 397, 506, 561, 748, 759, 782, 794, 1012, 1122, 1173, 1191, 1518, 1564, 1588, 2244, 2346, 2382, 3036, 4301, 4367, 4692, 4764, 6749, 8602, 8734, 9131, 12903, 13101, 13498, 17204, 17468, 18262, 20247, 25806, 26202, 26996, 27393, 36524, 40494, 51612, 52404, 54786, 74239, 80988, 100441, 109572, 148478, 155227, 200882, 222717, 296956, 301323, 310454, 401764, 445434, 465681, 602646, 620908, 890868, 931362, 1205292, 1707497, 1862724, 3414994, 5122491, 6829988, 10244982, 20489964]

約数ペア:

[(1, 20489964), (2, 10244982), (3, 6829988), (4, 5122491), (6, 3414994), (11, 1862724), (12, 1707497), (17, 1205292), (22, 931362), (23, 890868), (33, 620908), (34, 602646), (44, 465681), (46, 445434), (51, 401764), (66, 310454), (68, 301323), (69, 296956), (92, 222717), (102, 200882), (132, 155227), (138, 148478), (187, 109572), (204, 100441), (253, 80988), (276, 74239), (374, 54786), (391, 52404), (397, 51612), (506, 40494), (561, 36524), (748, 27393), (759, 26996), (782, 26202), (794, 25806), (1012, 20247), (1122, 18262), (1173, 17468), (1191, 17204), (1518, 13498), (1564, 13101), (1588, 12903), (2244, 9131), (2346, 8734), (2382, 8602), (3036, 6749), (4301, 4764), (4367, 4692)]