20508656

素因数分解:

$2^4\times 7^3\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:167

約数の個数: 80

約数和(自身を含む): 48062400

約数和(自身を除く): 27553744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 49, 56, 74, 98, 101, 112, 148, 196, 202, 259, 296, 343, 392, 404, 518, 592, 686, 707, 784, 808, 1036, 1372, 1414, 1616, 1813, 2072, 2744, 2828, 3626, 3737, 4144, 4949, 5488, 5656, 7252, 7474, 9898, 11312, 12691, 14504, 14948, 19796, 25382, 26159, 29008, 29896, 34643, 39592, 50764, 52318, 59792, 69286, 79184, 101528, 104636, 138572, 183113, 203056, 209272, 277144, 366226, 418544, 554288, 732452, 1281791, 1464904, 2563582, 2929808, 5127164, 10254328, 20508656]

約数ペア:

[(1, 20508656), (2, 10254328), (4, 5127164), (7, 2929808), (8, 2563582), (14, 1464904), (16, 1281791), (28, 732452), (37, 554288), (49, 418544), (56, 366226), (74, 277144), (98, 209272), (101, 203056), (112, 183113), (148, 138572), (196, 104636), (202, 101528), (259, 79184), (296, 69286), (343, 59792), (392, 52318), (404, 50764), (518, 39592), (592, 34643), (686, 29896), (707, 29008), (784, 26159), (808, 25382), (1036, 19796), (1372, 14948), (1414, 14504), (1616, 12691), (1813, 11312), (2072, 9898), (2744, 7474), (2828, 7252), (3626, 5656), (3737, 5488), (4144, 4949)]