20180994544

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{619}}^1\times {\mathrm{65731}}^1$

素因数の和:66389

約数の個数: 40

約数和(自身を含む): 40427809280

約数和(自身を除く): 20246814736

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 619, 1238, 2476, 4952, 9904, 19189, 38378, 65731, 76756, 131462, 153512, 262924, 307024, 525848, 1051696, 2037661, 4075322, 8150644, 16301288, 32602576, 40687489, 81374978, 162749956, 325499912, 650999824, 1261312159, 2522624318, 5045248636, 10090497272, 20180994544]

約数ペア:

[(1, 20180994544), (2, 10090497272), (4, 5045248636), (8, 2522624318), (16, 1261312159), (31, 650999824), (62, 325499912), (124, 162749956), (248, 81374978), (496, 40687489), (619, 32602576), (1238, 16301288), (2476, 8150644), (4952, 4075322), (9904, 2037661), (19189, 1051696), (38378, 525848), (65731, 307024), (76756, 262924), (131462, 153512)]