20068576

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:176

約数の個数: 72

約数和(自身を含む): 44643312

約数和(自身を除く): 24574736

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 71, 73, 88, 121, 142, 146, 176, 242, 284, 292, 352, 484, 568, 584, 781, 803, 968, 1136, 1168, 1562, 1606, 1936, 2272, 2336, 3124, 3212, 3872, 5183, 6248, 6424, 8591, 8833, 10366, 12496, 12848, 17182, 17666, 20732, 24992, 25696, 34364, 35332, 41464, 57013, 68728, 70664, 82928, 114026, 137456, 141328, 165856, 228052, 274912, 282656, 456104, 627143, 912208, 1254286, 1824416, 2508572, 5017144, 10034288, 20068576]

約数ペア:

[(1, 20068576), (2, 10034288), (4, 5017144), (8, 2508572), (11, 1824416), (16, 1254286), (22, 912208), (32, 627143), (44, 456104), (71, 282656), (73, 274912), (88, 228052), (121, 165856), (142, 141328), (146, 137456), (176, 114026), (242, 82928), (284, 70664), (292, 68728), (352, 57013), (484, 41464), (568, 35332), (584, 34364), (781, 25696), (803, 24992), (968, 20732), (1136, 17666), (1168, 17182), (1562, 12848), (1606, 12496), (1936, 10366), (2272, 8833), (2336, 8591), (3124, 6424), (3212, 6248), (3872, 5183)]