39987272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 84940800

約数和(自身を除く): 44953528

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 79, 104, 124, 157, 158, 248, 314, 316, 403, 628, 632, 806, 1027, 1256, 1612, 2041, 2054, 2449, 3224, 4082, 4108, 4867, 4898, 8164, 8216, 9734, 9796, 12403, 16328, 19468, 19592, 24806, 31837, 38936, 49612, 63271, 63674, 99224, 126542, 127348, 161239, 253084, 254696, 322478, 384493, 506168, 644956, 768986, 1289912, 1537972, 3075944, 4998409, 9996818, 19993636, 39987272]

約数ペア:

[(1, 39987272), (2, 19993636), (4, 9996818), (8, 4998409), (13, 3075944), (26, 1537972), (31, 1289912), (52, 768986), (62, 644956), (79, 506168), (104, 384493), (124, 322478), (157, 254696), (158, 253084), (248, 161239), (314, 127348), (316, 126542), (403, 99224), (628, 63674), (632, 63271), (806, 49612), (1027, 38936), (1256, 31837), (1612, 24806), (2041, 19592), (2054, 19468), (2449, 16328), (3224, 12403), (4082, 9796), (4108, 9734), (4867, 8216), (4898, 8164)]