390211198

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 661118976

約数和(自身を除く): 270907778

約数列:

[1, 2, 13, 26, 31, 62, 167, 169, 223, 334, 338, 403, 446, 806, 2171, 2899, 4342, 5177, 5239, 5798, 6913, 10354, 10478, 13826, 28223, 37241, 37687, 56446, 67301, 74482, 75374, 89869, 134602, 179738, 484133, 874913, 968266, 1154471, 1168297, 1749826, 2308942, 2336594, 6293729, 12587458, 15008123, 30016246, 195105599, 390211198]

約数ペア:

[(1, 390211198), (2, 195105599), (13, 30016246), (26, 15008123), (31, 12587458), (62, 6293729), (167, 2336594), (169, 2308942), (223, 1749826), (334, 1168297), (338, 1154471), (403, 968266), (446, 874913), (806, 484133), (2171, 179738), (2899, 134602), (4342, 89869), (5177, 75374), (5239, 74482), (5798, 67301), (6913, 56446), (10354, 37687), (10478, 37241), (13826, 28223)]