291238760

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{19211}}^1$

素因数の和:19601

約数の個数: 32

約数和(自身を含む): 657050400

約数和(自身を除く): 365811640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 3032, 3790, 7580, 15160, 19211, 38422, 76844, 96055, 153688, 192110, 384220, 768440, 7280969, 14561938, 29123876, 36404845, 58247752, 72809690, 145619380, 291238760]

約数ペア:

[(1, 291238760), (2, 145619380), (4, 72809690), (5, 58247752), (8, 36404845), (10, 29123876), (20, 14561938), (40, 7280969), (379, 768440), (758, 384220), (1516, 192110), (1895, 153688), (3032, 96055), (3790, 76844), (7580, 38422), (15160, 19211)]