78639248

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:675

約数の個数: 40

約数和(自身を含む): 156027960

約数和(自身を除く): 77388712

約数列:

[1, 2, 4, 8, 16, 61, 122, 197, 244, 394, 409, 488, 788, 818, 976, 1576, 1636, 3152, 3272, 6544, 12017, 24034, 24949, 48068, 49898, 80573, 96136, 99796, 161146, 192272, 199592, 322292, 399184, 644584, 1289168, 4914953, 9829906, 19659812, 39319624, 78639248]

約数ペア:

[(1, 78639248), (2, 39319624), (4, 19659812), (8, 9829906), (16, 4914953), (61, 1289168), (122, 644584), (197, 399184), (244, 322292), (394, 199592), (409, 192272), (488, 161146), (788, 99796), (818, 96136), (976, 80573), (1576, 49898), (1636, 48068), (3152, 24949), (3272, 24034), (6544, 12017)]