1289771890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2179}}^1\times {\mathrm{5381}}^1$

素因数の和:7578

約数の個数: 32

約数和(自身を含む): 2534276160

約数和(自身を除く): 1244504270

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 2179, 4358, 5381, 10762, 10895, 21790, 23969, 26905, 47938, 53810, 59191, 118382, 119845, 239690, 295955, 591910, 11725199, 23450398, 58625995, 117251990, 128977189, 257954378, 644885945, 1289771890]

約数ペア:

[(1, 1289771890), (2, 644885945), (5, 257954378), (10, 128977189), (11, 117251990), (22, 58625995), (55, 23450398), (110, 11725199), (2179, 591910), (4358, 295955), (5381, 239690), (10762, 119845), (10895, 118382), (21790, 59191), (23969, 53810), (26905, 47938)]