287344414

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1288

約数の個数: 32

約数和(自身を含む): 499968000

約数和(自身を除く): 212623586

約数列:

[1, 2, 7, 14, 139, 149, 278, 298, 973, 991, 1043, 1946, 1982, 2086, 6937, 13874, 20711, 41422, 137749, 144977, 147659, 275498, 289954, 295318, 964243, 1033613, 1928486, 2067226, 20524601, 41049202, 143672207, 287344414]

約数ペア:

[(1, 287344414), (2, 143672207), (7, 41049202), (14, 20524601), (139, 2067226), (149, 1928486), (278, 1033613), (298, 964243), (973, 295318), (991, 289954), (1043, 275498), (1946, 147659), (1982, 144977), (2086, 137749), (6937, 41422), (13874, 20711)]