20479648

素因数分解:

$2^5\times 7^2\times {\mathrm{37}}^1\times {\mathrm{353}}^1$

素因数の和:414

約数の個数: 72

約数和(自身を含む): 48306132

約数和(自身を除く): 27826484

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 74, 98, 112, 148, 196, 224, 259, 296, 353, 392, 518, 592, 706, 784, 1036, 1184, 1412, 1568, 1813, 2072, 2471, 2824, 3626, 4144, 4942, 5648, 7252, 8288, 9884, 11296, 13061, 14504, 17297, 19768, 26122, 29008, 34594, 39536, 52244, 58016, 69188, 79072, 91427, 104488, 138376, 182854, 208976, 276752, 365708, 417952, 553504, 639989, 731416, 1279978, 1462832, 2559956, 2925664, 5119912, 10239824, 20479648]

約数ペア:

[(1, 20479648), (2, 10239824), (4, 5119912), (7, 2925664), (8, 2559956), (14, 1462832), (16, 1279978), (28, 731416), (32, 639989), (37, 553504), (49, 417952), (56, 365708), (74, 276752), (98, 208976), (112, 182854), (148, 138376), (196, 104488), (224, 91427), (259, 79072), (296, 69188), (353, 58016), (392, 52244), (518, 39536), (592, 34594), (706, 29008), (784, 26122), (1036, 19768), (1184, 17297), (1412, 14504), (1568, 13061), (1813, 11296), (2072, 9884), (2471, 8288), (2824, 7252), (3626, 5648), (4144, 4942)]