78871037

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 95650560

約数和(自身を除く): 16779523

約数列:

[1, 7, 31, 49, 137, 217, 379, 959, 1519, 2653, 4247, 6713, 11749, 18571, 29729, 51923, 82243, 208103, 363461, 575701, 1609613, 2544227, 11267291, 78871037]

約数ペア:

[(1, 78871037), (7, 11267291), (31, 2544227), (49, 1609613), (137, 575701), (217, 363461), (379, 208103), (959, 82243), (1519, 51923), (2653, 29729), (4247, 18571), (6713, 11749)]